1) A batter hits a baseball so that it leaves the bat at speed Vo = 37.0 m/s at angle
- Find the position of the ball and its velocity (magnitude and direction) at t = 2.00 s.
- Find the time when the ball reaches the highest point of its flight, and its height h at this time.
- Find the horizontal range R-that is, the horizontal distance from the starting point to where the ball hits the ground
Answer :
a.
b.
c.
2) A daring 510-N swimmer diver off a cliff with a running horizontal leap, as shown in Fig. E3.10. What must her minimum speed be just as she leaves the top of the cliff so that she will miss the ledge at the bottom, which is 1.75 m wide and 9.00 m below the top of the cliff?
Figure E3.10
Answer :
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