What horizontal force must be applied to a 2150 N boulder to achieve horizontal acceleration of 15.0m/s^2?

The crate A weighs 780 lb. Between all contacting surfaces, μs = 0.34 and μk = 0.29. Neglect the weights of the wedges. What force F is required to move A to the right at a constant rate? Wedge angle is 6 degrees.

An elevator cab that weighs 23.2 kN moves upward. What is the tension in the cable if the cab's speed is (a) increasing at a rate of 1.02 m/s? and (b) decreasing at a rate of 1.02 m/s?? (a) Number i Units (b) Number i Units

Two forces, F = 2.50 i N and F2 = (1.20 i – 2.30 j) N , act on a 3.00 kg object. Find the magnitude of acceleration of the object. a = 4.0V m/s?

Two forces are applied to a block to accelerate it across a horizontal surface. If a = 21.40 , F = 3.89 N, and m = 1.91 kg, find the magnitude of the acceleration a for the block. Assume the surface is frictionless.

Two forces FA and FB are applied to an object whose mass is 15.1 kg. The larger force is FA. When both forces point due east, the object's acceleration has a magnitude of 0.561 m/s². However, when FA points due east and FB points due west, the acceleration is 0.328 m/s², due east. Find (a) the magnitude of FA and (b) the magnitude of Fg. (a) Number i (b) Number i Units Units + ➜