Work And Energy Problem Solving 5. Initially at rest, a block with a mass of 6 kg above a frictionless surface is pulled to the right along the horizontal with a force of 12 N. How much work is done by the force after it has moved 3 m? 6. Initially at rest, a block with a mass of 6 kg above a frictionless surface is pulled to the right along the horizontal with a force of 12 N. What is the velocity of the block after it has moved 3 m?

A 950 IN crate slides 12 m at constant speed down a ramp that is tilted 35°above horizontal. Part A: How much work does gravity do on the crate as it slides the 12 m?Express your answer with the appropriate units.   Part B: What is the change in thermal energy?Express your answer with the appropriate units.   *The answer is NOT 64071.42 J*

A grocery cart is pulled along a rough horizontal surface of 5.0 N. It moves through a distance of 6.0 m at a constant speed. a. How much work is carried out by this force? b. How much work is carried out by friction? c. Find the work done on the cart.

1. Calculate the work done on the suitcase by  F→. Express your answer with the appropriate units. 2. Calculate the work done on the suitcase by the gravitational force. Express your answer with the appropriate units. 3.Calculate the work done on the suitcase by the normal force. Express your answer with the appropriate units. 4. Calculate the work done on the suitcase by the friction force. Express your answer with the appropriate units. 5. Calculate the total work done on the suitcase. Express your answer with the appropriate units. 6. If the speed of the suitcase is zero at the bottom of the ramp, what is its speed after it has traveled 3.90 mm along the ramp? Express your answer with the appropriate units.

Several physical situations are described below. For each situation, simplify the work-energy equation by canceling any zero terms and any energy terms (whether KE or PE) which are unchanging. Explain each term which gets canceled. A Hot Wheels car starts from rest on top of an inclined plane and rolls down the incline through a loop and along a horizontal surface. Friction and air resistance have a significant effect on the car. Simplification of Work-Energy Equation KEi + PEi + Wnc = KEf + PEf

Before railroads were invented, goods often traveled along canals, with mules pulling barges from the bank. If a mule is exerting a 1200 N force for 10 km, and the rope connecting the mule to the barge is at a 20 degree angle from the direction of travel, how much work did the mule do on the barge?  a. 12 MJ b. 11 MJ c. 4.1 MJ d. 6 MJ

1. A constant 15 N horizontal force is applied to a 15 kg cart at rest on a level floor. If friction is negligible, what is the speed of the cart after it has gone 8.0 m? Think and Prepare 1. You are going to use the Work-Energy Theorem for this problem 2. How will you figure out the change in KE of the cart? 3. How will you figure out the work done by the force? Enter to 2 significant figures Speed after 8 m = m/s

You push your physics book 2.10 m along a horizontal tabletop with a horizontal push of 2.10 N while the opposing force of friction is 0.700 N. A. How much work does your 2.10 N push do on the book? B. How much work does the friction force do on the book? C. How much work does the normal force from the table do on the book?