As shown in the figure above, a wooden ball with a mass of 280 g swings back and

Question

As shown in the figure above, a wooden ball with a mass of 280 g swings back and forth on a string, pendulum style, reaching a maximum speed of 5.00 m/s when it passes through its equilibrium position. Use g = 10.0 m/s2.

(a) At what maximum height above the equilibrium position was the ball released from rest?
_______________m

(b) At one instant, when the ball is at its equilibrium position and moving left at 5.00 m/s, it is struck by a bullet with a mass of 12.0 g. This is shown in the figure. Before the collision, the bullet has a velocity of 296 m/s to the right. The bullet passes through the ball and emerges with a velocity of 100 m/s to the right. What is the magnitude and direction of the ball’s velocity immediately after the bullet emerges from the ball? To indicate the direction, use a positive sign if the ball's velocity is to the right, and a negative sign if the ball's velocity is to the left. Neglect any change in mass for the ball.
_______________m/s

Explanation / Answer

a)h=v^2/2g=1.27 m b)-0.280*5+0.012*296=0.012*100+0.280*v v=3.4 m/s

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.