Question

SOLVE THE FOLLOWING
A ball falls off a table and reaches the ground in 1 sec. Assuming g = 8 m/sq sec.Calculate its speed on reaching the ground and the height of the table

Answer 1

Answer:

6.25=s

Explanation:

acc. to newtons equations

v = u + gt ( acceleration = acc. due to garvity )

v = 0 + 8 x 1

v = 8 m / s

the ball will reach the ground at a speed of

10 m/s

acc. to second equation

v^2 = u^2 + 2gs

100 = 0 + 2 x 8 x s

100 /16 = s

s = 6.25 m

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