Question

A car of mass 1000 kg first travels forwards at 25m/s" and
then backwards at 5m/s. what is the change in the kinetic
energy of the car?
(a) 200kj (b) 300kj
(c) 325kj (d) 450 kj​

Answer 1

see the attachement..

last mein 300*10³ ho jayega....

10³Joules = 1Kilo joule

therefore

Ans:300 kj

Hoe this helps❤

#Khushi here☺