1. What is the acceleration of the system in the picture at the right?
A) 3.3 m/s^2
B) 9.8 m/s^2
C) 4.9 m/s2
D) 6.6 m/s^2
3.3 m/s^2
6.6 m/s^2
9.8 m/s^2
4.9 m/s2
1. What is the acceleration of the system in the picture at the right?
A) 3.3 m/s^2
B) 9.8 m/s^2
C) 4.9 m/s2
D) 6.6 m/s^2
3.3 m/s^2
6.6 m/s^2
9.8 m/s^2
4.9 m/s2
2. A frictionless pulley is set up with two hanging masses as shown at the right. What is the tension in the right-hand rope while the masses move freely?
8.5 N
15 N
32 N
26 N
3. The diagram below shows a 1.0 kg object connected to a 10.0 kg mass. Assuming the force of friction is 10.0, what is the acceleration of the system?
9.8 m/s^2
8.8 m/s^2
8.9 m/s^2
8.0 m/s^2
4. In the diagram below, two masses are connected by a light string over a frictionless, masses pulley. What coefficient of static friction is required to keep m1 from slipping?
2.0
0.50
0.67
0.33
A 20.0 kg mass held at rest on a frictionless incline by force F. What is the magnitude of force F ?
9.81 N
49.1 N
98.1N
83 N
A 3.0 Kg block slides on a frictionless 20 degree inclined plane. A force of 16N acting parallel to the incline is applied to the block. What is the acceleration of the block?
2 m/s^2 up the incline
3.9 m/s^2 down the incline
2 m/s^2 down the incline
5.3 m/s^2 up the incline
A box weighing 46 newtons rests on an incline that makes an angle of 25° with the horizontal. What is the magnitude of the component of the box’s weight perpendicular to the incline?
21 N
19 N
42 N
26 N
Which of the following is the best expression for the Normal Force?