Question

The velocity of a body moving vertically up is 49ms at half the maximum height. The
height to which it could further rise is
1) 245m
2) 122.5m
3) 61.25m
4) none​

Answer 1

Answer:

kya malum bhai/bhabhi

Answer 2

Answer:

1) 245

Explanation:

from equation of kinematics,

v^2 - u^2 = 2*a*s

v - final velocity

u - initial velocity

a - acceleration

s - displacement

As the body is moving upward it's velocity will be zero when it's at its maximum zero.

Also the gravity is acting against the motion of body.

So,

v = 0 m/s

u = 49m/s

a = -9.8m/s

so from the equation above ,

(0^2) - (49^2) = 2*(-9.8m/s^2)*(s)

s = 122.5m

Since the object is at half of the maximum height,

h/2 = 122.5m

therefore h = 245m