07

07 vertical is the maximum height S. A balloon is ascending at ground packet is dropped from the balloon rnuch time and with what ve v. ground ? Take g -9.8 ms- 2 (Ans. 45.98 6. A stone is dropped from a ball«xm with a velocity of 16 mg-I. The stone reaches ground in 4 s. Calculate the height of the balloon when the stone was dropped. (Ans. 14.4 m) A. 7. From the top of a tower 100 m in height a ban is dropped and at the same time another ball is projected vertically upwards from the ground with velocity of 25 ms' 1. Find when and where the two balls will meet. Take g = 9.8 ms- 2. (Ans. 78.4 from top, 4 s) 8. A body is dropped from rest at a of m, and simultaneously, another body is dropped from wrest from a point 100 m above the ground. What is their difference in height after they have fallen (1) 2 S (it) 3 S ? How does the difference in height vary with time ? Take g = 10 ms- (Ans. 50 m, difference in height remains constant at 50 m) 9. A body falling freely under gravity passes J the upper point it began to fall ? Take g 93 ms- from the top of a towe