Question

4. A toy car A moving with a speed of 30 m/s has a kinetic energy of 900J. Another toy car
B has twice the mass of toy car A. If toy car B moves with a speed of 15 m/s, what is the
kinetic energy of toy car B?
a. 450J
b. 900J
C. 1800J
d. 3600J​

Answer 1

Answer:

A.450J

Explanation:

Explanation in the Image