Question

The velocity of a particle of mass 1kg is given by V = 10rootX. The work done by the force acting on the particle during its motion from X=4 to X=9m is
Ans is 250J

Answer 1

Answer:

we can use the formula v2- u2=2as

Explanation:

where v=10√x and u= 0 so 100x = 2ax,where we get a= 50 and w= 1×50×5=250