explain please E. arctan(a/vr) 11. In what aituations, if ang, can force? body move in a...
Please help
A. A block is pulled along a horizontal surface by a force of 12.0 N. The block has a mass of 4.00 kg and it accelerates at 2.00 m/s. Find the coefficient of kinetic friction for the interface between the block and the surface. B. A stone falls vertically through the air and experiences a drag force. If the stone's mass is 6.00 kg. and the drag force (upwards force) is 14.0 N, what is the acceleration of...
1. The figure shows a box with mass m1 on a
frictionless plane inclined at angle ?1. The
box is
connected via a cord of negligible mass to another
box with mass m2 on a frictionless plane
inclined at
angle ?2 (> ?1). The pulley
is frictionless and has
negligible mass and assumes that the setup is on the
surface of the earth.
a) Provide free-body force diagram for both boxes.
b) What is the acceleration in terms of m1,...
A horizontal force F, of strength 3.0 N, is applied to a block of mass m = 1.0 kg as shown. The coefficient of static friction between the block and the surface is 0.60, and the coefficient of kinetic friction is 0.20. Will the block move? What is the force of friction that acts on the block?
1. A person exerts a horizontal force of 125 N on a crate with a mass of 30.0 kg. a. If the crate doesn't move, what's the magnitude of the static friction force? b. What is the minimum possible value of the coefficient of static friction between the crate and the floor? 2. A horse is hamessed to a sled having a mass of 236 kg, including supplies. The horse must exert a force exceeding 1.240 N at an angle...
A loaded penguin sled weighing 80 N rests on a plane inclined at
20° to the horizontal. Between the sled and the plane the
coefficient of static friction is 0.26, and the coefficient of
kinetic friction is 0.17.What is the minimum magnitude of the force F, parallel to the
plane, that will prevent the sled from slipping down the
plane?What is the minimum magnitude F that will start the sled moving up
the plane?What value of F is required to...
Questions 1&2
FP 1. A sliding block of mass m 0.25 kg is subject to a force of magnitude 4 N that makes an angle of ф-30 with the horizontal surface. If the coefficient of kinetic friction between block and surface is 0.5, what is the resulting acceleration of the block along the surface Figure 1: Block on incline. 2. A block of mass m - 5 kg is subject to a force of magnitude 20 N that makes an...
A loaded penguin sled weighing 64 N rests on a plane inclined at 20° to the horizontal. Between the sled and the plane the coefficient of static friction is 0.20, and the coefficient of kinetic friction is 0.17. (a) What is the minimum magnitude of the force , parallel to the plane, that will prevent the sled from slipping down the plane? ___N (b) What is the minimum magnitude F that will start the sled moving up the plane? ___...
62 need help PLEASE DRAW FREE BODY DIAGRAMS!!!!!
A boy coasts down a hill on a sled, reaching a level surface at the bottom with a speed of 7.0 m/s. if the coefficient of friction between the sled's runners and the snow is 0.050 and the boy and sled together weigh 600 N, how far does the sled travel on the level surface before coming to rest? A woman at an airport is towing her 20.0-kg suitcase at constant speed...
o m all, 2019 Problem 1 The USA Bobsledding team is training for the Olympics by pushing a large box across a gymnasium floor. The box has a mass of 135 kg. The coefficient of static friction between the floor and box is 0.6, and the coefficient of dynamic friction between the box and floor is 0.45. (12.5 pts a) (2.5 pts) What is the maximum frictional force acting on the box when it is not moving? b) (2.5 pts)...
1. The force = 9 i + 12 j + 5 k acts on a small object. If the displacement of the object is = 16 i + 10 j . Find the work done by the force using the scalar product . 2. A 25 kg chandelier is hanging from a cable in an elevator (have you ever seen a chandelier in an elevator?). What is the tension in the cable if the elevator that moves downward...