Question

what is the momentum in kg.m/sec of the 10 kg car travelling at ( a ) 5m/ sec ( b ) 20m/ sec ( c ) 36 km / hr​

Answer 1

given mass =10

(a) when speed is 5m/sec then momentum

= mv= 10 multiply by 5

= 50 kgm/s

(b) speed = 20 cm/ s

first of all convert velocity into m/s which will be 20/100

= 0.2 m/s

(c) 36km/hr =10 m/s