Question

Calculate the kinetic energy of 1,400 kg roller

coaster car that is moving with a speed of 12
m/s when it reaches the bottom of the hill.

Answer 1

100800 joule

Step-by-step explanation:

Solution :Here,given

mass(m)=1400 kg

velocity (v)=12m/s

Kinetic Energy (K.E)=?

K.E =1/2mv^2

=1/2*1400*(12)^2

=1/2*1400*144

=201600÷2

=100800 joule