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A particle has been projected at certain angle ? with the horizontal, find the value of ? for which the particle hits the ground in such a manner that initial and final velocity vectors are at 90°. 1. 60° 2. 30° 3. 45° 4. For any value of ?

A particle has been projected at certain angle ? with the horizontal, find the value of ? for which the particle hits the ground in such a manner that initial and final velocity vectors are at 90°.

1. 60°
2. 30°
3. 45°
4. For any value of ?

Grade:12

1 Answers

Sher Mohammad IIT Delhi
askIITians Faculty 174 Points
9 years ago
450because angle between initial and final vector will be 2*theta, incase of 90 degrees initial and final vectors are in opposite direction.

Sher Mohammad
b.tech iit delhi
faculty, Askiitians

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