A)A body projected vertically up from top of building of height H. fin

1.	A)A body projected vertically up from top of building of height H. find time after which ithits the ground. b) The position of a particle is given by x = 4 - 5t - t2, where x is in metre and t is in second. Find its instantaneous velocity at 2s.
Answer» ANSWER: I can't believe it EXPLANATION: thank you help it

A)A body projected vertically up from top of building of height H. find time after which ithits the ground. b) The position of a particle is given by x = 4 - 5t - t2, where x is in metre and t is in second. Find its instantaneous velocity at 2s.

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ANSWER:

I can't believe it

EXPLANATION:

thank you help it

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A)A body projected vertically up from top of building of height H. find time after which ithits the ground. b) The position of a particle is given by x = 4 - 5t - t2, where x is in metre and t is in second. Find its instantaneous velocity at 2s.​

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A)A body projected vertically up from top of building of height H. find time after which ithits the ground. b) The position of a particle is given by x = 4 - 5t - t2, where x is in metre and t is in second. Find its instantaneous velocity at 2s.