68 363
Assignments Done
98,7%
Successfully Done
In November 2018

Answer to Question #22108 in Mechanics | Relativity for mohamed

Question #22108
A block weighing 98.0 N falls 64.0 m.
(a) What is the potential energy of the block at 64.0 m?
(b) What speed does the block have as it strikes the ground?
Expert's answer
(a) Potential energy isE=F*h = 98.0 N *64.0 m = 6272 J
(b)velocity we can find from energy conservation
E=mv*2/2= 6272J
wherem is mass, m=F/g = 98/9.8 = 10kg
v= sqrt(2E/m) = sqrt(2*6272J/10) = 35,4 m/s

Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

Comments

No comments. Be first!

Leave a comment

Ask Your question

Submit
Privacy policy Terms and Conditions