A 77kg sofa is slid across the living room floor by applying 39.2N of force and experiencing 11.7N of frictional force.
1
1
1
2
What can be stated concerning the mass of an object
measured in kg
measured in N
Never changes
Is calculated based on the gravity of the objects environment
Mass
Weight
Utilizing only the free body diagram (box and arrows only), the ___ can be determined
Mass
Magnitude of the Velocity
Magnitude of the Acceleration
Direction of the net force
A squirrel pushes a large acorn horizontally on a tree branch to her hidden storage space. The acorn is too heavy so a much larger squirrel helps push it, quadrupling the force exerted on the acorn. Describe the resulting acceleration of the acorn.
1/4a
a4
4a
4ma
A 0.3kg ice hockey puck is shot on the frictionless ice by 27N force applied horizontally from a players blade. What is the pucks acceleration?
90 m/s2
0.01 m/s2
9.8 m/s2
8.1 m/s2
What happens to the soccer ball in the bed of Tow Mater when he travels at 60m/s then stops suddenly?
Rolls forward
Rolls back
Inertia causes it to roll back
Accelerates as it rolls back
Find the weight of a llama whose mass is 194kg.
19.80N
194.0N
1901N
9.8 N
What are the missing forces in the following free body diagram of an object that was accelerating at 3.1m/s2 then acted upon by these forces.
-314N
-176N
0N
-751N
Which direction will the object accelerate?
Right
Down
Up
Left
Which of the vectors represents the force of gravity as the box slides down the ramp?
H
F
G
E
Which of the vectors represents the normal force as the box slides down the ramp?
A
D
E
C
B
Which of the vectors represents the frictional force as the box slides down the ramp?
C
A
B
E
D
A frictional force causes a
Increase in velocity
Increase in acceleration
No change in original motion
Decrease in velocity
A clown is riding a unicycle at 11 m/s before the following forces are applied to the unicycle. What is the sum of the forces for the free body diagram?
300 N
0 N
180 N
120 N
What best describes the resulting motion of the clown?
Stops cycling, no motion
Continues cycling at a constant velocity
Decreases acceleration to the right
Increase acceleration to the right
Night Monkey (50 kg) and Deadpool (70 kg) are on a romantic ice skating date. Careless Whisper begins playing as they reach the middle of the rink and both push off each other to go skating in opposite directions. Which of the following statements is true?
Deadpool will go farther off the pond and faster than Night Monkey
Deadpool will go farther off the pond but slower than Night Monkey
Night Monkey will go farther off the pond and faster than Deadpool
Night Monkey will go farther off the pond but slower than Deadpool
Night Monkey (50 kg) and Deadpool (70 kg) are on a romantic ice skating date. Careless Whisper begins playing as they reach the middle of the rink and both push off each other to go skating in opposite directions. Which of the following statements best explains how third law applies to the scenario?
Third Law does not apply
As Night Monkey pushes off of Deadpool, Deadpool also pushes off of Night monkey with an equal, but opposite force
Night Monkey will continue in motion until the edge of the rink stops them
Deadpool will not accelerate as fast due to the larger mass
A girl is lifting a box into a treehouse by a rope. There is a sandwich in a box. Which free body diagram best applies the forces acting on the sandwich while it is accelerated upwards in the box.
Question 18
18.
Find the weight of the sofa.
Question 19
19.
Find the net force of the sofa.
Question 20
20.
Find the acceleration of the sofa.
Question 21
21.
Draw the freebody diagram with all forces labeled with the numerical value and name.