A worker applies a constant horizontal force with magnitude of 20N to a box with mass of 40kg resting on a plane with negligible friction. What acceleration does the box exert?

For the next three items: A 200 kg plank is projecting a distance L = 5.0 m from a wall which is held steadily by a string that is connected to it at an angle = 30° from the horizontal. The plank is actually fasted to the wall where an unknown force F is exerted on the plank by the wall. If a 60 kg mass is placed on the plank at a distance d = 1.0 m, find the tension force on the string. Ө d O 1300 N O 4200 N O 1600 N O2200 N L-

A dockworker applies a constant horizontal force of 80.0N to a block of ice on a smooth horizontal floor with negligible friction. The block moves 11.0m from rest in a span of 5.00s. What is the mass of the block?

In the figure, a block of mass m = 3.71 kg is pulled along a horizontal frictionless floor by a cord that exerts a force of magnitude F = 12.7 N at an angle 0 = 26.0°. (a) What is the magnitude of the block's acceleration? (b) The force magnitude F is slowly increased. What is its value just before the block is lifted (completely) off the floor? (c) What is the magnitude of the block's acceleration just before it is lifted (completely) off the floor? (a) Number i Units (b) Number i Units (c) Number i Units > >

A car (m = 1600 kg) is parked on a road that rises 12° above the horizontal. What are the magnitudes of (a) the normal force and (b)the static frictional force that the ground exerts on the tires?

An elevator has a mass of 200kg. An average person has of 40 kg. The elevator must accelerate upward at 3 m/s^2. If the elevator cable is capable of supporting 6500 N of tension before it breaks. What is the maximum number of people you could have on board?

You are pushing a box, apply Fa = 90 N.  The box's mass is 25 kg.  The coefficients of friction are μs =0.60 and μk = 0.4.  The box was stationary when you began pushing.  Calculate the frictional force magnitude exerted on the box by the floor

A car (m = 1630 kg) is parked on a road that rises 11° above the horizontal. What are the magnitudes of (a) the normal force and (b) the static frictional force that the ground exerts on the tires?

A loaded grocery cart is rolling across a parking lot in a strong wind. You apply a constant force F = (27 N) - (38 N) to the cart as it undergoes a displacement s(-8.5 m)i (3.0 m)j.

The rock is hanging from the middle of a clothesline. The rope is attached at equal heights 24 units apart and the entre point sags 1 unit below them. What is the tension if he has a mass of 20kg?