A bowling ball is dropped on a moon from the height of 14 m. The acceleration of gravity on the moon is 4 m/s2. ?
Determine the time it took for the ball to crash at the surface. Round your answer to the nearest whole number?
b. 1 s
c. 4 s
d. 3 s
- MorningfoxLv 71 month ago
I would solve it by using the standard equation.
distance[final] = distance[start] + speed[start]*time + 0.5*acceleration*time^2
Plug in the numbers in this problem
0 = 14 + 0.5*(-4)*t^2
14 = 2*t^2
7 = t^2
2.646 = t
That's sort-of close to 3.