Part A A hunter aims directly at a target (on the same level) 42.0 m a.At what a

Question

Part A

A hunter aims directly at a target (on the same level) 42.0 m a.At what angle should the bow be aimed so the target will be hit? Express your answer to three significant figures

Part B Vector V 1 is 6.2 units long and points along the negative x axis. Vector V 2 is 8.9 units long and points at 50 to the positive x axis. What are the x and y components of vector V 1? Express your answers using two significant figures. Enter your answers numerically separated by a comma. What are the x and y components of vector V 2? Express your answers using two significant figures. Enter your answers numerically separated by a comma. 1)Determine the magnitude of the sum V 1+V 2) Determine the angle of the sum V 1+V 2.

Part C You are given a vector in the xy plane that has a magnitude of 85.0 units and a y component of-63.0 units.Specify the direction of the vector.

Part D An athlete performing a long jump leaves the ground at a 28.6 angle and lands 7.88 m away.What was the takeoff speed? If this speed were increased by just 3.0%, how much longer would the jump be?

Explanation / Answer

let me explain.

suppose the hunter aims and and releases an arrow so that it will hit the target at 42m

the moment it was out of bow it will undergo gravity so we have to findout the angle at which the arrow should be projected.

using u2sin2(theta)=42

if u is given we can findout theta from this expression.

the x and y components of vector V 1

the x component of vector V 1=-6.2m

the y components of vector V 1=0

for the second vector

X comp=8.9cos500

and Y comp=8.9sin500

similarly solve remaining problems.

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