1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

# With what speed must an object be thrown vertically upwards to reach a height of 125 m? (Take g=10 m/s2)

A
20 m/s
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
30 m/s
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
40 m/s
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
50 m/s
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution

## The correct option is D 50 m/s When an object is thrown upward, its velocity starts to reduce and becomes zero at the highest position. Here, the acceleration due to gravity is uniform and opposite to the direction of velocity. Therefore, s=125 m,v=0 m/s,a=−10 ms−2,u=? Using the third equation of motion, v2−u2=2as 02−u2=2×(−10)×125 u=50 m/s

Suggest Corrections
0
Join BYJU'S Learning Program
Related Videos
Uniform Acceleration
PHYSICS
Watch in App
Explore more
Join BYJU'S Learning Program