Posted by **johnny** on Sunday, October 2, 2011 at 2:08am.

A horizontal spring with k=35N/m is compressed .085m and used to launch a .075kg marble. find the marble's launch speed. Repeat for a vertical launch.

- Physics 180 -
**drwls**, Sunday, October 2, 2011 at 2:51am
Use conservation of energy.

Compressed spring potential energy = Launch kinetic energy

(1/2) k X^2 = (1/2) M Vo^2

X is the amount of spring compression.

Solve for Vo.

Vo = X*sqrt(k/M)

The launch speed will be nearly the same for a vertical or horizontal launch, but you will need to account for gravitation potential energy change, M g X, when the spring releases the marble in the vertical case.

## Answer This Question

## Related Questions

- physics - A 4.9 g marble is fired vertically upward using a spring gun. The ...
- physics - A 5.0 gm marble is fired vertically upward using a spring gun. The ...
- mechanics - A 5 Kg marble is fired vertically upward using a spring gun. The ...
- Physics - A student uses a spring to launch a marble vertically in the air. The ...
- physics - In a projectile motion, if we measure the maximum height h and ...
- Physics - A hobby rocket reaches a height of 72.3 m and lands 111 m from the ...
- Physics - A rescue team has to use a specially designed sling-shot to supply ...
- Physics - A pellet (20g) is launched horizontally off a cliff (20m high) from a ...
- physics - Aerial skiing involves speeding down a steep ramp that curves sharply ...
- Physics - Aerial skiing involves speeding down a steep ramp that curves sharply ...

More Related Questions