A)Find the work done by each force acting on the rock during this motion, in units of Joules. There are 4 forces to consider: the force of Bob’s push (P), gravity, kinetic friction, and the normal force. B)If the rock starts from rest, what its final speed after Bob pushes it 6.00 meters? Give your answer in meters per second (m/s). Use the work-energy theorem. c)What is Bob’s power output at the end of the motion (i.e., after the rock has moved 6.00 meters)? Give your answer in units of Watts.
Bob is moving a 30.0 kg rock across the floor by applying a force P = 200.0 Newtons at an angle of θ = 30.0˚ below the horizontal, as shown below. The coefficient of kinetic friction between the rock and the ground is 0.250. The rock starts from rest and moves a total distance of 6.00 meters to the right across the floor.
A)Find the work done by each force acting on the rock during this motion, in units of Joules. There are 4 forces to consider: the force of Bob’s push (P), gravity, kinetic friction, and the normal force.
B)If the rock starts from rest, what its final speed after Bob pushes it 6.00 meters? Give your answer in meters per second (m/s). Use the work-energy theorem.
c)What is Bob’s power output at the end of the motion (i.e., after the rock has moved 6.00 meters)? Give your answer in units of Watts.
answer A B C
Trending now
This is a popular solution!
Step by step
Solved in 7 steps with 1 images
