A feather is dropped on the moon and takes 3.54s to hit the ground. The acceleration of gravity on the moon is 1.67 m/s2. Determine the displacement the feather ungoes.
Answer to nearest hundreth.
Question 21
21.
Question 22
22.
Question 23
23.
Question 24
24.
Question 25
25.
Marissa throws a ball straight up in the air with a velocity of 5 m/s.
How high does the ball go? (nearest hundreth)
Question 26
26.
Marissa throws a ball straight up in the air with a velocity of 5 m/s.
What velocity does the ball have when Marissa catches it again?
Question 27
27.
Question 28
28.
Question 29
29.
Question 30
30.
Question 31
31.
Question 32
32.
Question 33
33.
Draw the VvT graph that corresponds to the given XvT graph.
Question 34
34.
Draw the AvT graph that corresponds to the given XvT graph.
The displacement-time graph below represents the motion of a cart initially moving forward along a straight line. During which interval is the cart moving forward at constant speed?
AB
CD
BC
DE
The graph below represents the relationship between distance and time for an object in motion. During which interval is the speed of the object non-constant and non-zero?
CD
DE
AB
BC
Which graph best represents the relationship between velocity and time for an object which speeds up uniformly for 2 seconds, then moves at a constant velocity for 1 second, and finally slows down for 3 seconds? (Graph 1 is at top and graph 4 is at bottom)
1
2
3
4
The graph below shows the relationship between speed and time for two objects, A and B. Compared with the acceleration of object B, the acceleration of object A is
one-third as great
three times as great
twice as great
the same
Which pair of graphs represents the same motion?
2
4
3
1
A car accelerates from rest. The acceleration stays constant with time. Which graph shows the variation with time t of the speed v of the car?
D
B
C
A
Samantha walks along a horizontal path in the direction shown. The curved part of the path is a semi-circle.
The magnitude of her displacement 3/4 of the way from point P to point Q is approximately
6m
4m
8m
2m
A ball is thrown vertically upwards from the ground. The graph shows the variation with time t of the vertical displacement d of the ball.
Which of the following gives the final displacement after time T and the average speed between time t = 0 and time t = 0?
displacement=2D and average speed= 0m/s
displacement=0m and average speed= 2D/T
displacement=0m and average speed= 0m/s
displacement=2D and average speed= 2D/T
The following quantities relate to the rate of change of position. Which pair will always have the same magnitude?
Average speed and average velocity
Instantaneous speed and instantaneous velocity
Average acceleration and average velocity
Average speed and instantaneous speed
Average velocity and instantaneous velocity
If an object has an acceleration of 0 m/s2, then one can be sure that the object is not ____.
changing velocity
moving
changing position
Which one of the following is NOT consistent with a car which is accelerating?
A car is moving with an increasing speed
A car is moving with a decreasing speed
A car is moving with a high speed
A car is changing direction
A fullback is running down the football field in a straight line. He starts at the 0-yard line at 0 seconds. At 1 second, he is on the 10-yard line; at 2 seconds, he is on the 25-yard line; at 3 seconds, he is on the 45-yard line. This is evidence that
he is accelerating
he is covering the same distance in each consecutive second
he is moving with a constant speed (on average)
The skier moves from A to B to C to D.
What was the displacement of the skier from A to C?
180m
60m
120m
The skier moves from A to B to C to D.
What was the magnitude of the skier’s average velocity between B and C?
2.5m/s
1m/s
1.5m/s
2.75m/s
2m/s
Forrest Gump walks 3 kilometers east, 10 kilometers south, 3 kilometers west and finally 10 kilometers north. If the total trip took 6 hours, what is his average velocity?
10 km/hr
4.33 km/hr
0 km/hr
2.16 km/hr
A feather is dropped on the moon and takes 3.54s to hit the ground. The acceleration of gravity on the moon is 1.67 m/s2.
What are your givens? (select all that apply)
t= 3.45s
A feather is dropped on the moon and takes 3.54s to hit the ground. The acceleration of gravity on the moon is 1.67 m/s2. Determine the displacement the feather ungoes.
Which of the follow is the unknown?
d
t
A feather is dropped on the moon and takes 3.54s to hit the ground. The acceleration of gravity on the moon is 1.67 m/s2. Determine the displacement the feather ungoes.
Which of the kinematic equations would you use?
A feather is dropped on the moon and takes 3.54s to hit the ground. The acceleration of gravity on the moon is 1.67 m/s2. Determine the displacement the feather ungoes.
Which of the follwing would be the final equation?
Marissa throws a ball straight up in the air with a velocity of 5 m/s. How high does the ball go?
What are your givens? (select all that apply)
t= 7.43s
Marissa throws a ball straight up in the air with a velocity of 5 m/s. How high does the ball go?
Which of the follow is the unknown?
d
t
Marissa throws a ball straight up in the air with a velocity of 5 m/s. How high does the ball go?
Which of the kinematic equations would you use?
Marissa throws a ball straight up in the air with a velocity of 5 m/s. How high does the ball go?
Which of the follwing would be the final equation?
Which graph best represents the motion of an object whose speed is decreasing?
4
1
2
3
Which of the following would be the evidence for which graph best represents the motion of an object whose speed is decreasing?
The slope is zero.
The slope starts large and decreases.
The slope is starting small and increases.
The slope is constant.
Which of the following would be the reasoning of the evidence for which graph best represents the motion of an object whose speed is decreasing?
The slope of a velocity vs time graph is acceleration. Therefore, if the slope is increasing, so is the acceleration.
The slope of a velocity vs time graph is acceleration. Therefore, if the slope is decreasing, so is the acceleration.
The slope of a position vs time graph is velocity. Therefore, if the slope is increasing, so is the velocity.
The slope of a position vs time graph is velocity. Therefore, if the slope is decreasing, so is the velocity.
Which graph best represents the motion of an object at rest?
3
1
2
4
Which of the following would be the evidence for which graph best represents the motion of an object at rest?
The XvT graph starts small and increases.
The slope of the XvT graph is constant.
The slope of the VvT graph is constant.
The VvT graph is starting small and increases.
Which of the following would be the reasoning of the evidence for which graph best represents the motion of an object at rest?
The slope of a position vs time graph is velocity. Therefore, if the slope is increasing, so is the velocity.
The slope of a position vs time graph is velocity. Therefore, if the slope is increasing, so is the acceleration.
The slope of a position vs time graph is velocity. Therefore, if the slope is constant, the velocity is zero.
The slope of a position vs time graph is velocity. Therefore, if the slope is decreasing, so is the velocity.