Question

A movie stuntwoman drops from a helicopter that is 30.0 m above the ground and moving with a constant velocity whose components are 10.0 m/s upward and 15.0 m/s horizontal and toward the south. Ignore air resistance. (a) Where on the ground (relative to the position of the helicopter when she drops) should the stuntwoman have placed foam mats to break her fall? (b) Draw x-t, y-t, vx-t, and vy-t graphs of her motion.

Answer 1

Answer:

a)3.65 s

b)54.75 m

Explanation:

take g=10 m/s^2

x(t)=15 t

v(t)=10-10*t

-30=10*t-5*t^2.....(1)

solving the eq (1) we get

t=3.65 s hence,

R≅15*3.6 = 54.75 m

note:

graphs are attached