It takes 3 seconds using a power of 35 W to lift a resting 7 kg bowling ball from the ground and place it on a shelf. Ignoring friction, what is the height to which the bowling ball was lifted?

A. 735 m
B. 15 m
C. 1.5m
D. 1.7m

What formula would i use?

Question

It takes 3 seconds using a power of 35 W to lift a resting 7 kg bowling ball from the ground and place it on a shelf. Ignoring friction, what is the height to which the bowling ball was lifted?

A. 735 m
B. 15 m 
C. 1.5m
D. 1.7m 

What formula would i use?

anonymous · Answer

$$W = \frac{J}{ s }=\frac{ Nm }{ s }$$
solving for meter we rearrange the equation as such$$m =\frac{ Ws }{ N }$$

anonymous · Answer

W is watts, s is seconds, N is newtons

anonymous · Answer

Oh and $$N = Mg$$
Newtons in this equation is equal to the weight which is the force of gravity. This equals mass times the acceleration due to gravity

anonymous · Answer

thank you!

anonymous · Answer

your welcome.

anonymous · Answer

you're :)