7. A block of mass 5 kg is beingpulled along a board horizontallywith aconstant velocity; the5kgcoefficient of friction between theFxtwo surfaces is 0.25.Unit outoW=mga) What is the normal reactionV unforce between the board andFig 3.19the block?b) What is the frictional force that opposes the motion?

Name: 7. A block of mass 5 kg is beingpulled along a board horizontallywith
Uploaded: 2024-03-20T06:57:37.000Z
Channel: Bartleby
Description: 7. A block of mass 5 kg is beingpulled along a board horizontallywith aconstant velocity; the5kgcoefficient of friction between theFxtwo surfaces is 0.25.Unit outoW=mga) What is the normal reactionV unforce between the board andFig 3.19the block?b)

Along vertical, net force must be zero. So, weight of block is balanced by normal force. Since,…

Science

Physics

AN 7. A block of mass 5 kg is being pulled along a board horizontally with a constant velocity; the 5kg coefficient of friction between the Fk two surfaces is 0.25. W = mg a) What is the normal reaction force between the board and Fig 3.19 the block? b) What is the frictional force that opposes the motion?

AN 7. A block of mass 5 kg is being pulled along a board horizontally with a constant velocity; the 5kg coefficient of friction between the Fk two surfaces is 0.25. W = mg a) What is the normal reaction force between the board and Fig 3.19 the block? b) What is the frictional force that opposes the motion?

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter5: Newton's Law Of Motion

Section: Chapter Questions

Problem 40P: In the following figure, the horizontal surface on which this block slides is frictionless. If the...

See similar textbooks

Similar questions

A person doing a chin-up weighs 700 N, exclusive of the arms. During the first 25.0 cm of the lift, each arm exerts an upward force of 355 N on the torso. If the upward movement starts from rest, what is the persons velocity at that point?
The engines in a supertanker carrying crude oil produce a net force of 20,000,000 N on the ship. If the resulting acceleration is 0. 1 m/s2, what is the ship’s mass?
When you take off in a jet aircraft, there is a sensation of being pushed back into the seat. Explain why you move backward in the seat—is there really a force backward on you? (The same reasoning explains whiplash injuries, in which the head is apparently thrown backward.)
A brave but inadequate rugby player is being pushed backward by an opposing player who is exerting a force of 800.0 N on him. The mass of the losing player plus equipment is 90.0 kg, and he is accelerating backward at 1.20m/s2 . (a) What is the force of friction between the losing player’s feet and the grass? (b) What force does the winning player exert on the ground to move forward if his mass plus equipment is 110.0 kg?
In Figure 5.12, the net external force on the 24-kg mower is given as 51 N. If the force of friction opposing the motion is 24 N, what force F(in newtons) is the person exerting on the mower? Suppose the mower is moving at 1.5 m/s when the force Fis removed. How far will the mower go before stopping?
What force does a trampoline have to apply to Jennifer, a 45.0-kg gymnast, to accelerate her straight up at 7.50m/s2 ? The answer is independent of the velocity of the gymnast—she can be moving up or down or can be instantly stationary.
A device used since the 1940s to measure the kick 01 recoil of the body due to heartbeats is the “ballistocardiograph,” What physics principle(s) are involved here to measure the force of cardiac contraction? How might we construct such a device?
A drone is being directed across a frictionless ice- covered lake. The mass of the drone is 1.50 kg, and its velocity is 3.00i m/s . After 10.0 s, the velocity is 9.00i+4.00j m/s . If a constant force in the horizontal direction is causing this change in motion, find (a) the components of the force and (b) the magnitude of the force.
A truck collides with a car, and during the collision, the net force on each vehicle is essentially the force exerted by the other. Suppose the mass of the car is 550 kg, the mass of the truck Is 2200 kg, and the magnitude of the truck’s acceleration is 10m/s2 . Find the magnitude of the car’s acceleration.
In the following figure, the horizontal surface on which this block slides is frictionless. If the two forces acting on it each have magnitude F=30.0Nand M=10.0kg, what is the magnitude of the resulting acceleration of the block?
A student is attempting to move a 30-kg mini-fridge into her dorm room. During a moment of Inattention, the mini-fridge slides down a 35 degree incline at constant speed when she applies a force of 25 N acting up and parallel to the Incline. What is the coefficient of kinetic friction between the fridge and the surface of the incline?
Two forces are acting on a 5.0-kg object that moves with acceleration 2.0m/s2 in the positive y -direction. If one of the forces acts in the positive x -direction and has magnitude of 12 N, what is the magnitude of the other?