Question

A rocket of mass 100 tonnes is propelled with a vertical velocity 1 km/s.Calculate kinetic energy.

Answer 1

Hello friend

Here is your answer............

Given :

Mass(m) = 100 tonnes

=( 100 x 1000)kg

Velocity (v) = 1 km./s

= 1000m/s


We have to find:

Kinetic energy (K.E) = ????

We know that the formula,

Kinetic energy = 1/2mv^2

K.E = 1/2 x 100 x 1000 x (1000 x 1000)

K.E = 50 x 10^9 J

K.E = 5 x 10^10 J.

Therefore, the kinetic energy of the rocket is 5 x 10^10 J..


Thanks........ :)