- #1

NotInMrPutmansClass

- 5

- 0

- Homework Statement
- Find the height of a cliff using a ball thrown at an angle and find how long it takes the ball to hit the ground.

- Relevant Equations
- a-sinA, aCosA

This is the question:

A ball is thrown with a speed of 6m/s at an angle of 25° above the horizontal from the top of a cliff. The ball strikes the ground 15 m from the bottom of the cliff.

How long does it take the ball to strike the ground?

How long is the cliff?Here's a visual representation of the problem.

I broke the angle into vectors

I solved for the time of the ball in the

x-axis

t=d/v

t=15m / 5.4378m/s

t = 2.7584 Seconds

But now I'm stuck and I'm lost on what to do next

A ball is thrown with a speed of 6m/s at an angle of 25° above the horizontal from the top of a cliff. The ball strikes the ground 15 m from the bottom of the cliff.

How long does it take the ball to strike the ground?

How long is the cliff?Here's a visual representation of the problem.

I broke the angle into vectors

I solved for the time of the ball in the

x-axis

t=d/v

t=15m / 5.4378m/s

t = 2.7584 Seconds

But now I'm stuck and I'm lost on what to do next

Last edited: