A mass of , moving horizontally at , is acted on by a force for , which brings the…
PHYSICS · Multi-part · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
A mass of 4.0kg, moving horizontally at 2.5ms−1, is acted on by a force for 5.0s, which brings the mass to rest. Answer the following questions without referring to SUVAT equations.
(1) Determine the change in momentum of the mass.
(2) Hence, use Newton's second law to find the magnitude of the force.