Question

A car is moving with a uniform velocity of 54 kilometre per hour (km/h). What is the kinetic energy of boy of mass 40 kg sitting in the car?​

Answer 1

$\huge\star{\underline{\mathfrak{Answer}}}$

GIVEN:

Velocity=54 km/h=15 m/s

mass 40 kg

FORMULA:-

KE=1/2 mv^2

So,

$(1 \div 2) \times 40 \times {15}^{2}$

$\huge\boxed{\underline{\mathfrak{Answer:4500J}}}$