Question

calculate the kinetic energy of a car weighing 50,000g moving with a velocity of 1200cm/s​

Answer 1

Answer:

3600 J (In SI)

Explanation:

We know that, kinetic energy K.E. = 1/2 mv^2 where m is the mass of the object and v is it's velocity.

Here given that m = 50,000g = 50 Kg

v = 1200 cm/s = 12 m/s

Therefore we get kinetic energy = 1/2 × 50 × (12)^2

= 3600 J ( in SI)