Question

Which of the following statements are IMPOSSIBLE? Choose all that apply.

The parked motorcycle had 0 J of KE.

The truck had 4019 J of KE and 524 kg∙m/s of momentum.

A ball moving in a circle had 502 N of net force acting on it.

A box had an acceleration of 0 m/s2 while a net force of 390 N acted on it.

Jack exerted 96 N of force due west on a cart. As a direct result, the cart exerted 96 N of force due east upon Jack.

A spoon exerts the same gravitational force upon Earth that Earth exerts upon it.

Answer 1

i) The parked motorcycle had 0 J of KE

POSSIBLE and true E = 0.5m • V^2  If  V=0 then E=0

ii) The truck had 4019 J of KE and 524 kg∙m/s of momentum

POSSIBLE as E = P^2/2m

iii) A ball moving in a circle had 502 N of net force acting on it.

Possible

iv) A box had an acceleration of 0 m/s2 while a net force of 390 N acted on it

IMPOSSIBLE F = m • a  m≠0 and F≠0 then a≠0 

v) Jack exerted 96 N of force due west on a cart. As a direct result, the cart exerted 96 N of force due east upon Jack.

POSSIBLE F = m • a  provided a=0 since Fɴeт=0

vi) A spoon exerts the same gravitational force upon Earth that Earth exerts upon it.

POSSIBLE