# A ball with a mass of #420 g# is projected vertically by a spring loaded contraption. The spring in the contraption has a spring constant of #35 (kg)/s^2# and was compressed by #9/6 m# when the ball was released. How high will the ball go?

##### 1 Answer

Nov 22, 2016

The height gained by the ball is

#### Explanation:

When the ball is projected vertically, it acquires a new potential energy, while the spring acquires the compression energy because of it's compression.

m is mass of ball,

g is acceleration due to gravity,

h is height gained by the ball,

k is spring constant,

x is compression of the spring.

So,

** #:.h=9.5663# metres #=9.57# metres.** (answer).