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`        When a body is projected from the ground with an initial velocity'u'with a certain angle with respect to the ground, the magnitude of change in velocity from t=0 to t=0 secs is:`
6 years ago

510 Points
```										initial velocity = Vi = ucos@ (i) + usin@j

after t time ,
(vertical comp of velocity ) Vy = (usin@-gt) (j)

horizontal component remains same ..
Vx = ucos@

final velocity (Vf) = (ucos@) (i) + (usin@-gt) (j)

change in velocity = Vi- Vf = dV = gt (j)

dV = gt  (change in velocity after time t)
approve if u like this ans
```
6 years ago
SAGAR SINGH - IIT DELHI
879 Points
```										Dear student,
Horizontal component of velocity remains same...
So, Vx = ucos@

final velocity (Vf) = (ucos@) (i) + (usin@-gt) (j)

change in velocity = Vi- Vf = dV = gt (j)

dV = gt  (change in velocity after time t)

All the best.
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Sagar Singh
B.Tech, IIT Delhi

```
6 years ago
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