A 0.70-kg block all test on a frictionless, horizontal surface is acted upon by a force...
A 3.90 kg block is acted upon by a horizontal force F(x) = 24.0
- 10.0x where the force is measured in Newtons if x is measured in
meters. The coefficient of kinetic friction between the block and
the flat surface is 0.190. The block is initially at x = 0 m.
a) What distance must the block travel if the net work done on
the block by F(x) and friction combined is to be exactly
zero?_________________
b) At what...
A 4.7 kg block is being pushed across a frictionless horizontal surface by a horizontal force. The block accelerates at 3.8 m/s2. What is the magnitude of the normal force the surface exerts on the block? Express your answer in newtons and round to one decimal place.
A 3.9 kg block is being pushed across a frictionless horizontal surface by a horizontal force. The block accelerates at 5.6 m/s2. What is the magnitude of the normal force the surface exerts on the block? Express your answer in newtons and round to one decimal place.
An object, which is initially at rest on a frictionless horizontal surface, is acted upon by four constant forces F1 is 11.1 N acting due East, F2 is 28.6 N acting due North, F3 is 43.5 N acting due West, and F4 is 20.7 N acting due South. How much total work is done on the object in 3.33 seconds, if it has a mass of 18.0 kg? Number Units Which type of energy is changing for the object while...
An object, which is initially at rest on a frictionless horizontal surface, is acted upon by four constant forces. F is 21.6 N acting due east, F2 is 28.6 N acting due north, F3 is 43.5 N acting due west, and Fl is 10.8 N acting due south. How much total work is done on the object in 2.22 s, if it has a mass of 22.0 kg? total work done on object: Which type of energy is changing for...
An object, which is initially at rest on a frictionless horizontal surface, is acted upon by four constant forces F1 is 14.6 N acting due East, F2 is 28.6 N acting due North, F3 is 52.1 N acting due West, and F4 is 17.4 N acting due South. How much total work is done on the object in 2.22 seconds, if it has a mass of 14.0 kg? Number Units Which type of energy is changing for the object while...
A 0.500 kg block rests (at x = 0) on a horizontal, frictionless surface as in the figure. The block is pressed back against a spring having a constant of k = 625 N/m, compressing the spring to xi = - 10.0 cm. Then the block is released, and it travels a distance d up an incline with ? = 300 from the horizontal. (10 points) a)What is the potential energy when the spring is fully compressed? b)What is the...
Problem 3 A 6-kg block is moving on a horizontal frictionless floor with a speed of 4 m/s when a constant horizontal force F is applied to the block. The speed of the block increases to 10 m/s within a distance of 5 m. Find (a) initial and final kinetic energy, and (b) the applied force F Problem 4 A0.50 kg block sliding on a horizontal frictionless surface with a speed of 2.5 m/s strikes a light spring that has...
A 0.2-kg block on a horizontal, frictionless surface is attached to a horizontal spring. The spring constant is k = 600 N/m. The block is pulled to the right until it is a distance of 0.08 m from the unstrained position and released from rest. What is the kinetic energy of the block when it is 0.06 m from the unstrained position?
Problem 2 A block A of 0.5-kg rests on a horizontal, frictionless surface. The block is pressed back against a spring having a constant of k 400 N/m, compressing the spring by 12.0 cm. Then the b sreleased. The incline has a friction coefficient μ-02, and the horizontal surface has no friction. 1. Find the maximum distance d the block travels up the incline if -40 (Position C) 2. How fast is the block moving up when halfway to its...