Question

a ball is thrown vertically upward with velocity of 98 how long does the ball remain in the air​

Answer 1

Answer:

20sec

Explanation:

assuming g=9.8

for upward motion v=u-at

98=0- 9.8*t   t=10 sec

Since upward motion time and downward motion time will be same therefore 10+10=20 sec....U can check the same by verifying downward motion but equation will be v=u+at