The force shown in the attached figure is the net eastward force acting on a bal

Question

The force shown in the attached figure is the net eastward force acting on a ball.  The force starts rising at t = 0.020 s, falls back to zero at t = 0.062 s, and reaches a maximum force of 55 N at the peak.  Determine with an error no bigger than 25% (high or low) the magnitude of the impulse (in N-s) delivered to the ball.  Hint: Do not use J = F?t. Look at the figure.  Find the area of a nearly equally sized triangle. SHOW WORK

The force shown in the attached figure is the net eastward force acting on a ball. The force starts rising at t = 0.020 s, falls back to zero at t = 0.062 s, and reaches a maximum force of 55 N at the peak. Determine with an error no bigger than 25% (high or low) the magnitude of the impulse (in N-s) delivered to the ball. Hint: Do not use J = F?t. Look at the figure. Find the area of a nearly equally sized triangle. SHOW WORK

Explanation / Answer

area = 0.5*55*(0.062-0.02) = 1.155 N.s

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