Home
Class 11
PHYSICS
A body of mass 10kg at rest is acted upo...

A body of mass 10kg at rest is acted upon simultaneously by two forces 4 N and 3 N at right angles to each other. The kinetic energy of the body at the end of 10 sec is

A

100 J

B

300 J

C

50 J

D

125 J

Text Solution

Verified by Experts

The correct Answer is:
D
`vecF_("net") = sqrt(3^2+4^2) = 5N`
`a=F/m =5/10 =1/2 m//s^2`
K.E `=1/2 mv^2 =1/2 m(at)^2 =1/2 xx10 xx25 = 125 J`
Promotional Banner

Similar Questions

Explore conceptually related problems

A body of mass 10 kg is acted upon by two forces each of magnitude 10 N making an angle of 60^(@) with each other. Find the net acceleration of the body

A body of mass 2 kg is at rest. Two forces of 6 N and 8 N act on the body at right angles to each other. What is the velocity of the body after 3 second?

A body of mass 2kg is acted upon by two forces,each of magnitude 1N,making an angle of 60^(@) with each other.The acceleration of the body in ms^(-2) is ?

A body of mass 10 kg is acted upon by two perpendicular forces , 6 N and 8 N . The resultant acceleration of the body is

A body of mass 10kg is acted upon by two per pendicular forces 6N and 8N . The resultant ac-celeration of the body is .

A body of mass 5 kg is acted upon by two perpendicular forces 8 N and 6 N Give the magnitude and direction of the acceleration of the body .

A body of mass 3 kg at rest is acted upon by a force and the body moves through a distance 20 m in 5 s. Force on the body is

A body of mass 10 kg is acted upon by a net force F which varies with time t as shown in figure. Then the net momentum in SI units gained by the body at the end of 10 seconds is

A body of mass 5sqrt(3) kg is acted upon by two forces each of magnitude 2 N and inclinded at 60^(@) with each other. What is the acceleration of the body in m//s^(2) ?