Select the letter to the left of the applet to initialize Problem A.

1. Shoot the bullet. It misses the target, because the initial speed is too low. Using DVAT equations, determine the value of the initial speed required to hit the target. Enter the calculated speed and test your prediction.
2. Now change the target position and recalculate the initial speed. Test your prediction.
3. How can you quickly determine the initial speed for any target position at the same gun height?
4. Change the gravitational field strength to the value at the surface of the Moon. Predict the initial speed required to hit the target. Test your prediction.

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