Question

Aisha dropped an object of mass 4 Kg from a height of
The object has a speed of 0 m/s at position A and is at
of 10m above the ground. At position B, the object is
the ground. At position C, the object is 4m above th
At point D, the object is mere picometer ( almost a
above the ground. Assume negligible air resistanc
in the table.(g=10m/s2)
​

Answer 1

Explanation:

ANSWER

Change in velocity

−2−10=−12

Time required is 4 seconds

a=Δv/t

=−12/4

=−3m/s²

Hence,