physics help asap Part A Constants A gray kangaroo can bound across a flat stret

Question

physics help asap

Part A Constants A gray kangaroo can bound across a flat stretch of ground with each jump carrying it 9.0 m from the takeoff point. If the kangaroo leaves the ground at a 20° angle, what is its takeoff speed? Express your answer to two significant figures and include the appropriate units You may want to review (Pages 83- 85) Value Units Submit Part B What is its horizontal speed? Express your answer to two significant figures and include the appropriate units. uz =1 Value Units Submit Request Answer

Explanation / Answer

R = (v2 * sin2)/g

R = maximum range
= 9 m
v = initial velocity (not horizontal)
= ?
= angle of velocity from horizontal
= 20 degrees
g = gravity
= 9.8 m/s^2

therefore,
v2= (Rg)/(sin2)
=137.21
v=11.71 m/s @ 20degrees

in 2 significant is 12 m/s

horizontal velocity= vcos after rounding
=11.71* cos20
=11.00 m/s

in 2 issignificant 11 m/s

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