A 50 g particle that can move along the x-axis experiences the net force Fx=2.0t2N, where t is in s. The particle is at rest at t = 0 s. What is the particle's speed at t = 2.8 s?

A 50 g particle that can move along the x-axis experiences the net force Fx=2.0t2N, where t is in s. The particle is at rest at t = 0 s. What is the particle's speed at t = 2.8 s?

Explanation:

salamat sa points

acceleration = (change in speed) / (time for the change)

change in speed = (20-120)= -100 m/s.

1.5 min = 90 sec

acceleration = -100/90 = -1.11 m/s^2.

we don't care about the 150kg or the 2,500 meters. they don't make any difference.

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