A 4.50 kg block starting from rest is pushed by a force of 38.5 N at...
A horizontal force of 4.50 N is applied to a 1.50-kg block, initial at rest on a table with a level surface. Will the block move if the coefficient of static friction is µs = 0.580? What is the coefficient of static friction if it just begins to move? What is the acceleration of the block if the coefficient of kinetic friction is 0.150?
Starting from rest, a 3.2-kg box is pushed on a horizontal floor with a force of 482.6 N parallel to the floor. The coefficient of kinetic friction between the box and the floor is 0.5. What is the kinetic energy of the box after it has been pushed with the constant force of 5.8 meters?
The 52 kg block starting at rest is pushed 7.8 m up a ramp at an angle θ = 27.0° to the horizontal in 17 s. If the coeficient of kinetic friction is 0.17: a) What is the acceleration of block? m/s/s b) What is the force used to push the block up the ramp? N
A 3.6 kg block is pushed along a horizontal floor by a force ModifyingAbove Upper F With right-arrow of magnitude 28 N at a downward angle θ = 40°. The coefficient of kinetic friction between the block and the floor is 0.26. Calculate the magnitudes of (a) the frictional force on the block from the floor and (b) the block’s acceleration.
Starting from rest, a student pulls a (25.0+A) kg box a distance of (4.50 + B) m across the floor using a (134 + C) N force applied at 35.0 degrees above horizontal. The coefficient of kinetic friction is 0.220 between the floor and the box. Find the work done by the pulling force. Give your answer in joules (J) and with 3 significant figures. A=1 B=3 C=11
an 8kb block starts from rest from the top of a plane, inclined at 40 degrees with respect to the horizontal, and slides down at a constant acceleration. if the coefficient of kinetic friction between the block and the plane is 0.35, determine how far the block will travel in 3 seconds.
A 8.25kg block is sent up a ramp inclined at an angle 38.5 from the horizontal. It is given an initial velocity v0=15.0 m/s up the ramp. Between the block and the ramp, the coefficient of kinetic friction is ?k=0.477 and the coefficient of static friction is ?s= 0.845. HOw far up the ramp (in the direction along the ramp) does the block go before it comes to a stop? _______m
A 2.7 kg block initially in motion is pushed along d horizontal oor by d orce of magnitude 20 N at an angle θ 35 with the horizontal. The coefficient o kinetic friction between the block and floor s 0.25 (a) Calculate the magnitude of the frictlonal force on the block from the floor. (b) Calculate the magnitude of the block's acceleration n/s2
A 10 kg block is pushed against a vertical wall by a horizontal force of 100 N as shown in the figure the coefficient of static friction between the block and the wall is 0.60 and the coefficient of kinetic friction is 0.40 which of the following statements is true if the block is initially at rest 1) The block slides down the wall with an acceleration of magnitude 3.8 m/s2 The block will slide down the wall because the...
A 2.0 kg block starts from rest. It is pushed across a rough horizontal surface by a force F (magnitude of F = 8.0 N) directed at a 40° angle as shown. The block is found to accelerate along the surface at 2.0 m/s2. Prove that there is a frictional force acting on the block F-8.0 N 40° 40 2.0 kg