Question

A car of mass 500 kg is moving at 36 m/s. Calculate its kinetic energy.
please answer fast

Answer 1

Answer:

314000

Explanation:

K.E=1÷2mv^2

K.E=1÷2(500) (36)^2

K.E=1÷2(500) (1256)

K.E=250×1256

K.E=314000

I HOPE IT IS HELPFUL FOR YOU

Answer 2

Answer:

Given :-

• A car of mass 500 kg is moving at 36 m/s.

To Find :-

• What is the kinetic energy.

Formula Used :-

$\bigstar$ Kinetic Energy Formula :

$\mapsto \sf\boxed{\bold{\pink{K.E. =\: \dfrac{1}{2}mv^2}}}$

where,

• K.E. = Kinetic Energy
• m = Mass
• v = Velocity

Solution :-

Given :

• Mass = 500 kg
• Velocity = 36 m/s

According to the question by using the formula we get,

$\implies \sf K.E. =\: \dfrac{1}{2} \times 500 \times (36)^2$

$\implies \sf K.E. =\: \dfrac{1}{2} \times 500 \times (36 \times 36)$

$\implies \sf K.E. =\: \dfrac{1}{2} \times 500 \times 1296$

$\implies \sf K.E. =\: \dfrac{1}{\cancel{2}} \times {\cancel{648000}}$

$\implies \sf K.E. =\: 1 \times 324000$

$\implies \sf\bold{\red{K.E. =\: 324000\: J}}$

$\therefore$ The kinetic energy of a car is 324000 J .