Question

What force applied parallel to the plane is necessary to move a 16kg object up a frictionless plane 20m/s*s if the plane makes an angle of 60 degree with the horizontal

Answer 1

Answer:

The correct option is B.

Given,

mass=16kg,v3elocity=4m/s,k=10N/m

So,

2

1

kx

2

=

2

1

mv

2

2

1

×100×x

2

=

2

1

×16×4

2

50x

2

=128

x

2

=2.56=1.6