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Posted by on Sunday, October 16, 2011 at 2:22pm.

A rescue helicopter drops a crate of supplies from a height of 160 feet. After t seconds, the crate is 160 - 16t^2 feet above the ground.

a) Find the velcocity of the crate at t=1
b) With what velocity does the crate strike the ground?

for a do i just find the derivative and plug 1 in for t?

  • Calculus - , Sunday, October 16, 2011 at 3:10pm

    velocity is dh/dt, so yes on a)
    Now, for b, find t when h=0 Put that t into the dh/dt equation to find velocity.

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