- #1

jisbon

- 476

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- Homework Statement
- A truck travels at a speed v to the right (relative to the ground). A ball

launched inside the truck at tan theta = 4/3 has the same initial speed v (relative to truck).

An observer inside the truck measures the ball lands at a distance L from the initial

point. At the same time another observer on the ground measures the ball travel a

distance L' = xL. Determine x.

- Relevant Equations
- vx = vcos theta

vy = vsin theta

Hi all,

Not sure on how to start this question in the first place, but from what I gathered from the data given

I managed to derive this from the question:

##\theta = 53.13\deg##

Let inside truck be t, final position be f, and ground be g

##D_{ft} = L##

##D_{fg} = xL##

Also, for velocity (I'm pretty sure I'm wrong here)

Let velocity of ball be b.

##Vx_{bt} = cos \theta v##

##Vx_{bg} = v##

Not sure how to start this question, should I be using any form of kinematics equation or sort? Thanks

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