A 12.0-kg block is pushed across a rough horizontal surface by a force that is angled...

A 12.0-kg block is pushed across a rough horizontal surface by a force that is angled 30.0◦ below the horizontal. The magnitude of the force is 75.0 N and the acceleration of the block as it is pushed is 3.20 m/s2 . What is the magnitude of the contact force exerted on the block by the surface?

Solutions

Expert Solution

genius_generous answered 9 months ago

Next > < Previous

Related Solutions

A box is pushed across a rough horizontal floor by a force acting parallel to the...

A box is pushed across a rough horizontal floor by a force acting parallel to the floor in the direction of motion. A force doing negative on the box is------ gravity friction the applied force normal force of the floor upward on the body

A 13.0 kg block is dragged over a rough, horizontal surface by a 88.0 N force...

A 13.0 kg block is dragged over a rough, horizontal surface by a 88.0 N force acting at 20.0° above the horizontal. The block is displaced 4.50 m, and the coefficient of kinetic friction is 0.300. (a) Find the work done on the block by the 88.0 N force. (d) What is increase in internal energy of the block-surface system due to friction? (e) Find the total change in the block's kinetic energy.

9.) A 19.6 kg block is dragged over a rough, horizontal surface by a constant force...

9.) A 19.6 kg block is dragged over a rough, horizontal surface by a constant force of 183 N acting at an angle of angle 30.5 ◦ above the horizontal. The block is displaced 97.1 m and the coefficient of kinetic friction is 0.121. a. Find the work done by the normal force. Answer in units of J. b. What is the net work done on the block? Answer in units of J.

A 4.00 kg block sits at rest on a rough horizontal surface. The coefficient of kinetic...

A 4.00 kg block sits at rest on a rough horizontal surface. The coefficient of kinetic friction between the block and the surface is 0.275. Attached to the right side of the block is a spring which is also attached to a wall farther to the right. The spring has a spring constant of 220 N/m and is initially neither compressed nor stretched. A bullet of mass 50.0 grams is fired at the block from the left side. The bullet...

A 107-kg crate is being pushed across a horizontal floor by a force P that makes...

A 107-kg crate is being pushed across a horizontal floor by a force P that makes an angle of 18.5 ° below the horizontal. The coefficient of kinetic friction is 0.246. What should be the magnitude of P, so that the net work done by it and the kinetic frictional force is zero?

A 102-kg crate is being pushed across a horizontal floor by a force P that makes...

A 102-kg crate is being pushed across a horizontal floor by a force P that makes an angle of 41.7 ° below the horizontal. The coefficient of kinetic friction is 0.232. What should be the magnitude of P, so that the net work done by it and the kinetic frictional force is zero?

A block of mass m = 1.0 kg sliding along a rough horizontal surface is traveling...

A block of mass m = 1.0 kg sliding along a rough horizontal surface is traveling at a speed v0 = 10.0m/s when it strikes a massless spring head-on (see figure) and compresses the spring a maximum distance X =0.25m. If the spring has stiffness constant k = 100. N/m, determine the coefficient of kinetic friction between block and surface.

A 15 kg block is dragged over a rough, hor- izontal surface by a constant force...

A 15 kg block is dragged over a rough, hor- izontal surface by a constant force of 107 N acting at an angle of angle 31.9◦ above the horizontal. The block is displaced 59 m and the coefficient of kinetic friction is 0.189. Find the work done by the 107 N force. The 2 003 (part 2 of 5) 10.0 points Find the magnitude of the work done by the force of friction. Answer in units of J. 004 (part...

A 38.0-kg crate is being pushed along a horizontal surface. The applied force is 94.0 N...

A 38.0-kg crate is being pushed along a horizontal surface. The applied force is 94.0 N directed at an angle of 18.0° below the horizontal and the coefficient of friction is .21. a) Draw a free body diagram for the crate. b) Write expressions for the x and y components of the applied force (no numbers). c) Sum forces in the x and y direction (no numbers). d) Solve: What is the acceleration of the crate?

Starting with a speed of 2.50 m/s, a 2.00 kg block slides across a rough horizontal...

Starting with a speed of 2.50 m/s, a 2.00 kg block slides across a rough horizontal surface until it collides with a spring. The spring compresses a distance of 6.00cm as the block comes momentarily to rest. The total distance traveled by the block from its starting position to the position where it comes to rest is 0.800m. If the coefficient of kinetic friction between the block and the surface is 0.100, what is the spring constant of the spring?

Subjects