A coin is pushed from the edge of a laboratory bench with a horizontal velocity of 15.0 ms^-1. If the height of the bench from the floor is 1.5m, calculate the distance from the foot of the bench to the point of impact with the floor [g = 10ms^-2]

ONYEMAFRIDAY

9 years ago

pls i dont understand d derivation of d formular, HELP!

Brightonexcellent

1 year ago

U = Horizontal velocity =15 m/s. (given)
T = Time taken to fall
R = U × T
Also, H = 1/2 g t (square)
1.5 = 1/2 (10×t square)
3 = 10 × t (square)
t = √(3/10) = √0.3

R = U × T
Range = 15 × √0.3
R = 8.215
R = 8.22m. (C is correct)

Brightonexcellent

1 year ago

Using: Range = U × T

Orerealog

1 year ago

I don't understand