A projectile is fired at an upward angle of 55.0 from the top of a 170 m cliff with a speed of 195 m/s

What will be its speed when it strikes the ground below? (Use conservation of energy and neglect air resistance.)

I attached my latest attempt...

So, I keep getting this answer wrong in my hw system (I'm also not convinced it isnt broken) So I dont know if its a me-problem or an it problem. I have entered the following as answers:

*v*

strike

= 5628m

s

ANSWER 2:

*v*

strike

= 5630m

s

ANSWER 3:

*v*

strike

= 5620m

s

ANSWER 4:

*v*

strike

= 9220m

s

ANSWER 5:

*v*

strike

= 9221m

s

ANSWER 6:

*v*

strike

= 149m

s

ANSWER 7:

*v*

strike

= 149m

s

ANSWER 8:

*v*

strike

= 148m

s

Thanks for the help!

#### Top Answer

solution V f = 2 0 4 s m ... View the full answer