Explain why objects in free fall drop to the ground at the same speed, regardless of their mass.

An object in free fall is only subject to the gravitational force from the earth. The magnitude of this force is mg, where m is the mass of the object. Newton's second law states that the force on an object is equal to it's mass times the acceleration it experiences, F=ma. Equating the two, mg=ma, and thus a=g. The acceleration is therefore independent of mass as m does not appear in the equation of motion.

JG
Answered by James G. Physics tutor

2075 Views

See similar Physics A Level tutors

Related Physics A Level answers

All answers ▸

Given a projectile is launched, from rest, at an angle θ and travels at a velocity V, what is the range and path of motion of the projectile? (Ignore air resistance.)


What is EMF? How do we test for it?


What is the Strong Nuclear Force?


What is the minimum initial velocity necessary for an object to leave Earth?


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning