Another question sorry about the last one here is my question 7. Challenge: The unit of force is the newton (N). One newton is the force required to accelerate a 1-kg object at a rate of 1 m/s2.

Suppose each fan supplies a force of 2 N. Use Newton’s second law (F = ma) and the Gizmo to find the following.

(Hint: you will have to calculate the total mass for one or more given situations)

A. The mass of the cart: __

B. The mass of a fan: __

C. The mass of one of the draggable mass units: __

I think the answers are A = 2.0kg, B = 0.5kg and C = 2.5 kg

Explanation:

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.

0.93xc=0.93x3x10^8m/s

2.54cm is 1 inch

360seconds i 1 hr