Question

What is the impulse experienced by the hockey puck when a hockey player applies an average force of 80 N to a 0.25 kg hockey puck for a time of 0.1 seconds?

a) 800 kg x m/s
b) 20 kg x m/s
c) 8 kg x m/s
d) 2 kg x m/s

Answer 1

The impulse experienced by the hockey puck when an average force of 80 N is applied for a duration of 0.1 seconds is calculated to be 8 Ns or 8 kg·m/s. The correct answer is option c) 8 kg x m/s.

Step-by-step explanation:

The impulse experienced by the hockey puck can be calculated using the formula for impulse, which is the product of the average force applied to an object and the time during which the force is applied. The formula for impulse (I) is I = F × Δt, where F is the force in newtons and Δt is the time in seconds. For a force of 80 N applied over a time of 0.1 seconds, the impulse is:

I = 80 N × 0.1 s = 8 Ns, which can also be expressed as 8 kg·m/s because 1 Ns is equivalent to 1 kg·m/s.

Therefore, the correct answer is c) 8 kg x m/s.