Friday

December 19, 2014

December 19, 2014

Posted by **Cara** on Tuesday, September 8, 2009 at 1:15am.

How far above the base of the cliff does this happen in meters?

- Physics ?#2 -
**drwls**, Tuesday, September 8, 2009 at 1:44amWrite equations for the heights of each ball vs time and set them equal. Solve the resulting equation for time. Then compute the vertical height at that time.

y1 = 53.0 - 4.9 t^2

y2 = 25 t - 4.9 t^2

y2 - y1 = 0 = 25 t - 53

t = 53/25 s = 2.12 s

y1 = 31.0 m

**Answer this Question**

**Related Questions**

Physics - A ball is dropped from the top of a 49.0 -high cliff. At the same time...

Physics - Help imediately please very urgent! A stone is dropped from a cliff ...

physics - A stone is thrown horizontally at a speed of 4.8 m/s from the top of a...

physics - A stone is thrown horizontally with an initial speed of 10 m/s from ...

physics - 9. A stone is thrown at an angle of 30° above the horizontal from the...

Physics - A 3 kg ball is dropped from the top of a cliff. At the same time, a 9 ...

physics - a physics book is thrown horizontal at a velocity of 10.0m/s from the ...

Science - A ball is thrown from a cliff at a horizontal speed of 3m/second and ...

mechanics - a stone is dropped from a cliff 200m high.if a second stone is ...

Calculus/Physics - A stone is thrown from a cliff top with an upward velocity of...