Question

You shoot a projectile in horizontal direction at different heights at the same velocity. You obtained the following set of data:

H (cm)	R1 (cm)	R2 (cm)	R3 (cm)
30.12	25.00	25.50	24.90
45.24	32.10	32.30	32.30
60.67	36.50	37.60	36.80
74.98	41.90	39.70	41.10
85.09	44.30	44.20	43.60

Diameter of ball=2.542cm

a) Using the diagram above show that the range R of the projectile is given by:

R = V% V2H /g

b) Use the set of data above to calculate the velocity of the ball graphically.

Answer 1