PS 161 Exam2

What is the final speed of the block assuming it starts from rest? m=20kg, W_p = 200 J, W_f = -100 J, W_g = 0 J.

If a microphone falls from a height of 5.0 m, it's final speed before hitting the floor (ignoring air resistance) is

g_venus is 8.8 m/s². An object with a mass of 53 kg on Earth has what mass on Venus?

For the mass system below: what is the force of tension on the rope between the two 5 kg masses?

What is the power developed by the 40 N force at the end of the trip? m=20kg, v_f=3.2 m/s

How much work is done on the block by gravity? m=20 kg force is 40 N. d=5.0 m. μ_k is 0.102.

A 1500 kg elevator experiences a 5000 N force of friction after the cable snaps. What is K after it falls 5 m?

How much work is done on the block by the person? m=20kg, force is 40 N, d=5.0 m, μ_k is 0.102._{ }

How much work is done on the block by friction? m=20 kg, d=5.0 m, μ_k is 0.102._{ }

g_venus is 8.8 m/s². An object with a weight of 200 N on Earth has what weight on Venus?

Ignore friction. Which two expressions are equal to a, the magnitude of the acceleration of the system of masses?

What is the acceleration of the system below? (This problem takes place on Earth.)

Which of the following forces are non-conservative?