If a box of mass 20kg is being pulled by a force of 50N, and the friction is 10N, what is the resulting acceleration of the box?

First, we resolve the forces. So, if we take the positive direction to be the direction in which it is pulled, we get a force of +50N, and the friction goes against the motion, so the force of friction is -10N. So the sum of these two forces is 50N - 10N = 40N. Remembering Newton's Second Law of motion, F = ma, we know that the force = 40N, and mass = 20 kg, so acceleration a = F/m = 40N/20kg = 2 ms-2.

Answered by Laura U. Physics tutor

8406 Views

See similar Physics GCSE tutors

Related Physics GCSE answers

All answers ▸

What is are elastic and inelastic collisions?


What provides the centripetal force on a satellite and what are the factors that determine the size of the centripetal force on the satellite


how do i calculate acceleration?


How are force and work related?


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences