Question

A mass of 10 kg, initially at rest on a horizontal frictionless surface, is acted upon by a horizontal force of 25 N. The speed of the mass after it has moved 5.0 m is:
. a)  5.0 m/s 

. b)  10 m/s 

. c)  15m/s 

. d)  125 m/s 

. e)  250 m/s 


My answer:b
a = F/m = 25/10 = 5/2
v = √(2as) = √(2 * 5/2 * 5) = 5

so, how did you get B?

Related Questions

A 0.50 kg block initially at rest on a frictionless horizontal surface is acted upon by a force of 8... If a 0.50-kg block initially at rest on a frictionless, horizontal surface is acted upon by a force... A cannonball with a mass of 1.0 kilogram is fired horizontally from a 500-kilogram cannon, initially... A cannonball with a mass of 1.0 kilogram is fired horizontally from a 500-kilogram cannon, initially...