Toy car with m (mass) of 0.5kg moves at a v= 1.5m/s when it collides a...

Question

Question

Toy car with m (mass) of 0.5kg moves at a v= 1.5m/s when it collides a spring. The spring is compressed 0.2m before toy car is brought to rest.

Q. What is the spring constant of spring?

- How does the energy flow diagram look like for this question? Could you please draw it if you can?

Answer 1

Answer #1

From conservation of energy ,

KE of car = spring potential energy

(1/2)mv² = (1/2)kx²

0.5*1.5² = k*0.2²

k = 28.12 N/m

spring constant of spring, k = 28.12 N/m

(b)

Energy will flow from toy car (KE ) to spring (PE).

Show them with arrows.

Answer 2

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