A body is projected horizonatlly from the top of a cliff 45m above the ground....
PHYSICS
WAEC 2010
A body is projected horizonatlly from the top of a cliff 45m above the ground. if the body lands at a distance 30m from the foot of the cliff, calculate the speed of projection. [g = 10ms-2]
- A. 10ms-1
- B. 15ms-1
- C. 20ms-1
- D. 30ms-1
Correct Answer: D. 30ms-1
Explanation
V2 = U2 + 2gh
= 02 + 2 x 10 x 45 = 30
Post an Explanation Or Report an Error
If you see any wrong question or answer, please leave a comment below and we'll take a look. If you doubt why the selected answer is correct or need additional more details? Please drop a comment or Contact us directly. Your email address will not be published. Required fields are marked *