Question

A 55.0 kg runner who weights 539.0 N is accelerating at 3.2 m/s. After 2 seconds, she reaches a speed of 6.4 m/s. What is her momentum at this point?

Answer 1

Answer:352

Step-by-step explanation:

Answer 2

352kg.m/s

Step-by-step explanation:

Momentum is the product of mass and velocity. Momentum is a vector quantity. Momentum is the measurement of an object in motion thereby showing how much of the object is in motion. The formula of momentum (p) is given as:

p = mass * velocity

Given that the runner has mass of 55 kg, the momentum at a speed of 6.4 m/s is:

Momentum = mass * velocity = 55 * 6.4 = 352kg.m/s