Science, asked by DanteZBuB8332, 10 months ago

How high is the ledge from the ground

Answers

Answered by AdarshMittra
0

Answer:

t = 0.5 sec

a = 10m/s^2 (gravitational force)

u = 0 m/s

i. Using first law of motion

v = u+at

v = 0+10*0.5

v = 5 m/s

ii. Average speed = distance travelled/time

Using second law of motion to compute distance travelled

s = ut+1/2*a*t^2

s = 1/2*10*0.5*0.5

s = 1.25 m

Hence average speed = 1.25/0.5 = 2.5 m/s

iii. Height of the ledge would be equal to the distance travelled

And hence, height of the ledge = 1.25m.

Answered by | 26th Jun, 2013, 04:22: AM

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