if you push on a heavy box that is at rest, you must exert some force to start its motion. once the box is sliding, why does a smaller force to maintain its motion?

Question

31-10-2022
Physics

Answered

if you push on a heavy box that is at rest, you must exert some force to start its motion. once the box is sliding, why does a smaller force to maintain its motion?

Answer :

Other Questions

Astrology, that unlikely and vague pseudoscience, makes much of the position of the planets at the moment of birth. The only known force a planet exerts on Eart

what is the magnitude fp of the minimum force you need to exert on the crate to make it start sliding along the floor? let the coefficient of static friction μs

Find the missing force

When a particle with charge q moves across a magnetic field of magnitude B, it experiences a force to the side. If the proper electric field E is simultaneousl

A 2.63611 kg mass experiences a gravitational force of (167.974 N)ˆı at some point P. What is the gravitational field at that point? Answer in units of N/k

Planet 1 has mass 3M and radius R, while Planet 2 has mass 4M and radius 2R They are separated by center to center distance 8R A rock is placed halfway between

planet 1 has mass 3m and radius r, while planet 2 has mass 4m and radius 2r. they are separated by center-to-center distance 8r. a rock is placed halfway betwee

A block of mass M is sliding with an initial speed vi along a horizontal surface with negligible friction. A constant force of magnitude FA is exerted on the ob

Paruljain Paruljain · Answer 1 · 2022-11-03T07:29:29-04:00

If you push on a heavy box that is at rest, you must exert some force to start its motion. once the box is sliding, why does a smaller force to maintain its motion because the potential energy has turned into kinetic energy and energy is not lost on the box, some is lost to friction, but most of it is still kept.

Two events are taking place. To start box moving, you must first briefly accelerate it, and to momentarily accelerate something, you must push it in order to overcome inertia. You would still need to push it even if it were on an air hockey table with very little friction.

Second, sliding friction is typically less than static friction for many pairs of surface types (such as cardboard box on wood). The force you were providing will instead be used to overcome inertia, not friction, as soon as the box begins to move, and the box will lurch forward until your reflexes catch up. As a result, as soon as the box begins to move, the frictional force rapidly diminishes.

Learn more about frictional force here:

https://brainly.com/question/14662717

#SPJ4