9th Class
Science
Gravitation and Floatation
Question Bank
Gravitation IIT JEE Objective Problems
question_answer
A stone thrown vertically up from the ground reaches a maximum height of 50m in 10s. Time taken by the stone to reach the ground from maximum height is
A) 5s
B) 10s
C) 20s
D) 25s
Correct Answer:
B
Solution :
Since time of ascent = Time of descent it takes 10s to reach the ground