Question

K=1/2 mv^2. Determine m when v=30 and k=4500

Answer 1

k = 1/2mv^2.....v = 30, k = 4500

4500 = 1/2m30^2
4500 * 2 = 900m
9000 = 900m
9000/900 = m
10 = m <==

Answer 2

`K=(1)/(2)mv^2`

when v=30 and k=4500

`4500=(1)/(2)m(30)^2`

`4500=(1)/(2)m900`

`4500=450m`
divide bot sides by 450

`10=m`


m=10