Questions
A 500-kg car, moving with a velocity of 36 kmh-1 on a straight road unidirectionally, doubles its velocity in 1 min. The average power delivered by the engine for doubling the velocity is
detailed solution
Correct option is D
u=10ms−1,v=20ms−1Work done = Increase in kinetic energy =12×500202−102=500×30×102 Power =500×30×102×60=1250WTalk to our academic expert!
Similar Questions
Power of a water pump is 2 kW. If , the amount of water it can raise in one minute to a height of 10 m is (in litre)
799 666 8865
support@infinitylearn.com
6th Floor, NCC Building, Durgamma Cheruvu Road, Vittal Rao Nagar, HITEC City, Hyderabad, Telangana 500081.
free study material
JEE Mock Tests
JEE study guide
JEE Revision Notes
JEE Important Questions
JEE Sample Papers
JEE Previous Year's Papers
NEET previous year’s papers
NEET important questions
NEET sample papers
NEET revision notes
NEET study guide
NEET mock tests
