A box m=73 kg is being pulled by a constant force F=187 newtons at an angle of 29 degrees. The initial speed of the box is zero. a) Write an expression for the work done by the force F as the block moves a horizontal distance d. b) How much work, in joules, was done in moving the block 6.8 meters? c) What is the speed of the box at d=6.8 meters if the surface is frictionless in meters per second?

A tow truck pulls a car 4.30 kmkm along a horizontal roadway using a cable having a tension of 820 NN.   Part A- How much work does the cable do on the car if it pulls horizontally? Express your answer with the appropriate units.   Part B- How much work does the cable do on the car if it pulls at 37.0 degrees above the horizontal? Express your answer with the appropriate units.   Part C-How much work does the cable do on the tow truck if it pulls horizontally? Express your answer with the appropriate units.   Part D-How much work does the cable do on the tow truck if it pulls at 37.0 degrees above the horizontal?Express your answer with the appropriate units.   Part E-How much work does gravity do on the car in part A? Express your answer with the appropriate units.

A girl on skateboard (total mass of 53.5 kg) is moving at 11.9 m/s at the bottom of a long ramp. The ramp is inclined at 18.9° with respect to the horizontal. If she travels 14.3 m along the ramp before stopping, what is the work done by the net frictional force in J on her? Give your answer to 1 decimal place.

A 3.25-kg crate starting at rest slides down a rough 7.00-m-long ramp, inclined at 27.5° below the horizontal. The magnitude of the force of friction between the crate and the ramp is 9.00 N. (a) How much work is done on the crate by friction? (b) What is the change in potential energy of the crate in sliding down the ramp? (c) What is the speed of the crate at the bottom of the incline? m/s Need Help? Read It

A person applies a 50 N force on a crate, causing it to move horizontally at a constant speed through a distance of 10 m. What is the net work done on the crate? The net work done on the crate is 250 J. The net work done on the crate is zero joules. The net work done on the crate is 0.2 J. The net work done on the crate is 5 J. The net work done on the crate is 500 J.

A 0.34-kg particle has a speed of 3.0 m/s at point A and kinetic energy of 8.1 J at point B. (a) What is its kinetic energy at A?J(b) What is its speed at point B?m/s(c) What is the total work done on the particle as it moves from A to B?J

A child exerts a horizontal 15 N force on a 10 kg box to push it 7 m across a floor that has a coefficient of kinetic friction of 0.1 with the box.  (a) How much work does the child do on the box?  (b) How much work does gravity do on the box?  (c) How much work does the normal force do on the box?  (d) How much work does the force of kinetic friction do on the box?  (e)  What is the total work done on the box?  (f) How much kinetic energy has the box gained during this process?  (g)  If the box was initially at rest, then how fast is the box moving at the end of this process?

A 0.41-kg particle has a speed of 3.0 m/s at point A and kinetic energy of 8.0 J at point B. (a) What is its kinetic energy at A? (b) What is its speed at point B? m/s (c) What is the total work done on the particle as it moves from A to B? J

A boy pulls a 5-kg cart with a 20-N force at an angle of 30° above the horizontal for a length of time. Over this time frame, the cart moves a distance of 12 m on the horizontal floor. (a) Find the work done on the cart by the boy. (b) What will be the work done by the boy if he pulled with the same force horizontally instead of at an angle of 30° above the horizontal over the same distance?

Please asap