1) If the 50-kg crate is subjected to a force of P = 200 (N), determine its speed when it has traveled 15 m starting from rest. The coefficient of kinetic friction between the crate and the ground is P=0.3. If the 50-kg crate starts from rest and attains a speed of 6 m/s when it has traveled a distance of 15 m, determine the force P acting on the crate.The coefficient of kinetic friction between the crate and the ground is μ = 0.3.

1) If the 50-kg crate is subjected to a force of P = 200 (N), determine its speed when it has traveled 15 m starting from rest. The coefficient of kinetic friction between the crate and the ground is P=0.3. If the 50-kg crate starts from rest and attains a speed of 6 m/s when it has traveled a distance of 15 m, determine the force P acting on the crate.The coefficient of kinetic friction between the crate and the ground is μ = 0.3.

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.79P: The coefficient of rolling resistance between the 30-kg lawn roller and the ground is r=0.1. (a)...

See similar textbooks

Similar questions

The 1.9-kg slider is released from rest in position A and slides without friction along the vertical-plane guide. Determine the normal force exerted by the guide on the slider (a) just before it passes point C, (b) just after it passes point C, and (c) just before it passes point E. The normal forces are positive if they point up and/or to the left, negative if they point down and/or to the right.
If the coefficient of kinetic friction between the 50-kg crate and the ground isuk = 0.3, determine the distance the crate travels and its velocity when t= 3 s. The crate startsfrom rest, and p= 200 N.
The conveyor belt delivers each 12-kg crate to the ramp at A such that the crate’s speed is vA = 2.5 m>s,directed down along the ramp. If the coefficient of kinetic friction between each crate and the ramp is mk = 0.3,determine the smallest incline u of the ramp so that the crates will slide off and fall into the cart
The disk rotates at a constant acceleration of 0.005 revolutions per second and starts movement from rest, and what is its angular speed after one minute 1 If an external force does not act on an object, that means: 2. If the body is in free fall then: 3- One of the ways in which the friction between the contact surfaces can be reduced 1 ................ f
When the 5 kg block is 6 m from the wall, it is sliding at v1=14 m/s. If the coefficient of kinetic friction between the block and the horizontal plane is µk=0.3, determine the impulse of the wall on the block necessary to stop the block. Neglect the friction impulse action on the block during the collison.
The force F, acting in a constant direction on the 24-kg block, has a magnitude which varies with the position s of the block. When s = 0 the block is moving to the right at v = 6 m/s. The coefficient of kinetic friction between the block and surface is μk = 0.3. Determine how far the block must slide before its velocity becomes 15 m/s. No hand written solution and no image
The coefficient of static friction between the 200-kg crate and the flat bed of the truck is 0.3. Determine the shortest time for the truck to reach a speed of 60 km/h, starting from rest with constant acceleration, so that the crate does not slip.
The 10-lb block has a speed of 4 ft/s when the force of F=(8t2) lb is applied. The coefficient of kinetic friction at the surface is μs = 0.2
If the 40kg box is moving with 1 m/s^2 acceleration to the right, determine the magnitude of normal force acting on the box, if F is 174 N. The coefficient of kinetic friction between the box and the ground is 0.3.
The 2.5-Mg van is traveling with a speed of 100 km/h when the brakes are applied and all four wheels lock. If the speed decreases to 40 km/h in 5 s, determine the coefficient of kinetic friction between the tires and the road.'
The car has a mass of 2000kg. Determine the shortest time it takes for it to reach a speed of 90 km/hr, starting from rest, if the engine drives the front wheels, whereas the rear wheels are free rolling. The coefficient of friction between the wheels and road is s=0.4, k=0.3. Neglect the mass of the wheels. What are the reactions at the front and rear wheels while the car is accelerating
The 10 kg block is subject to the action of a force that has the constant direction towards the spring, with a magnitude F= 250 (1 + x) N, where x is measured in meters. If the coefficient of kinetic friction between the block and the horizontal surface is 0.20, and ks= 50 N/m Use the springs por your calculations Determine: a) The work done by all the forces acting on the block during a movement from A to B. b) If the block starts from rest at point A, determine its velocity at point B using the equation of motion (Newton's 2nd Law). c) Verify the speed obtained in b) through the equation of work and Kinetic Energy. d) Explain the differences between the two methods used to find the velocity, from the point of view of the volume of calculations. Recomendations: 1. No force (except weight) is constant throughout travel 2. Acceleration is not constant at any point along the way. 3. When applying Newton's second law, it is advisable to do it in two sections. 4. Review the…