A student pulls a box of books on a smooth horizontal floor with a force of 100 N in a direction of 30.0◦above the horizontal. The mass of the box and the books is 40.0 kg. Calculate the normal force acting on the box. Calculate the distance the box of books will travel if the student pulls for 8.0 s.

12. Suppose you move the 500N crate by pulling upward on the rope at an angle of 30° above the horizontal. How hard must you pull to keep it moving with constant velocity? Assume that Hk=0.40.

I need help deciding which equation to use

A horizontal force, Fm, is applied to a book that is on a rough horizontal tabletop. As a result the book is accelerating to the right. If necessary, use Fs for the force of static friction and Fk as the force of kinetic friction. Draw a free body diagram for the book

rrent Attempt in Progress To hoist himself into a tree, a 72.0-kg man ties one end of a nylon rope around his waist and throws the other end over a branch of the cree. He then pulls downward on the free end of the rope with a force of 365 N. Neglect any friction between the rope and the branch, and determine the man's upward acceleration. Use g =9.80 m/sec². a= i eTextbook and Media GO Tutorial

draw the fbd please

A 17 kg block is released from rest on a 32.5° incline. It takes 4.74 seconds to slide 1.18 meters along the ramp. Find the weight of the block. Fg = Find the acceleration of the block. a = m/s? Find the Normal Force. FN N. Find the friction. Ff = Find the coefficient of friction. µ =

Rectilinear Motion A 75 kg man stands on a spring scale in an elevator. During the first 3 secs of motion from rest, the tension T in the hoisting cable is 8300N. Find the reading R of the scale in N during this interval and the upward velocity v of the elevator at the end of the 3secs. The total mass of the elevator, man, and scale is 750kg. Ans. 830 N & 3.77m/s 2. T = 8300 N 1+ 750(9.81)=7360 N R 75(9.81)= 736 N

A man is pulling a 25 kg wagon forward at some unknown acceleration. Assuming he is pulling the wagon 178N forward with a rope that is found 29o above the horizontal, and the coefficient of friction between the wagon and the ground is 0.300: a) Determine the acceleration of the wagon.  b) Would the acceleration of the wagon change if you pushed the wagon at the same angle rather than pulled it? Explain in two sentences.

Two crates, of mass 65 kg and 125 kg, are in contact and at rest on a frictionless horizontal surface. A 536-N force is exerted on the 65-kg crate. Calculate the (normal) force th12at each crate exerts on the other. Please leave your answer to 3 s.f. FN 65 kg 125 kg