Question

a train weighing 2500 quintal is running at 15km/hr. when steam is shut off and a resistnce of 2kg.wt.per quintal act continuously until it is brought to rest .find the distance it travel after the steam is shut off and the time to come to rest​

Answer 1

Step-by-step explanation:

Correct option is

D

500 kW

Frictional force=0.5kgf=

100

5

×10

6

=50000N

Uniform speed=36kmph=36×

18

5

=10m/s

Power of engine is given by,

Power=Fv

=50000×10

=500000watt

=500kw