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A cannon fires successively two shells w...

A cannon fires successively two shells with velocity `v_0=250m//s`, the first at the angle `theta_1=60^@` and the second at the angle `theta_2=45^@` to the horizontal, the azimuth being the same. Neglecting the air drag, find the time interval between firings leading to the collision of the shells.

Text Solution

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The correct Answer is:
`Deltat=(2v_(0)sin(theta_(1)-theta_(2)))/((gcos theta_(1)+cos theta_(2)))=10.7 sec`
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