Trolley A carrying mass 10kg is moving at speed 5m/s, and collides with stationary Trolley B carrying a mass 5kg. Indicating which Law you would apply, what is the speed and direction of Trolley B if Trolley A's resulting movement is 2m/s to the left?

By the Law of Conservation of Momentum, Initial Momentum=Final Momentum, in a closed system.

Take movement to the right as + and to the left as -

Therefore equate the two as such: Initial (A+B) = final (A+B)

A+B = A+B

(+5x10) + (5x0) = (-2x10) + (5 x Y)

Y indicates speed of B

50+0=-20+5Y

70=5Y

Y=70/5

Y=+14m/s

Therefore Trolley B moves to the right at a speed of 14m/s

PS
Answered by Parinita S. Physics tutor

2957 Views

See similar Physics GCSE tutors

Related Physics GCSE answers

All answers ▸

A charged particle in a cyclotron moves in a circle with radius 5mm. If the field in the cyclotron is 0.06 T and the velocity of the particle is 2.4x10^7, what is the charge-mass ratio of the particle?


Why, in a thermal flask, does having a vacuum layer help keep the coffee warm?


What are the properties of electromagnetic waves?


How to remember what is Ideal Gas Law?


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