Question

20. A balloon starts rising from the ground with an acceleration of 1.25 m/s". After 8s, stone
is released from the balloon. The stone will g = 10 ms?)
A. COVER A DISTANCE OF 40 M
B. have a displacement of 50 m
C. reach the ground in 4 s
D. begins to move down after being released​

Answer 1

Explanation:

As it moves upwards its acceleration will be 1.25ms−2 and it reaches a certain height then a stone falls from the balloon after 8s. Now we will calculate the distance of the stone above the ground about which it begins to fall from the balloon. Therefore, h=40m. ... v=0+(1.25)8=10ms−1.