A box of mass m is pulled by force Fp at an angle along a frictionless surface and the box accelerates to the right with a magnitude of the horizontal acceleration Fpcosθ/m, therefore the correct option is D.
What is friction?
Friction is a type of force that resists or prevents the relative motion of two physical objects when their surfaces come in contact.
The friction force prevents any two surfaces of objects from easily sliding over each other or slipping across one another. It depends upon the force applied to the object.
A box of mass m is pulled by force Fp at an angle along a frictionless surface. The box accelerates to the right
The only horizontal force responsible for the movement of the box is the horizontal component of the force Fp which is Fpcosθ
By using equilibrium of horizontal forces
ΣFh =0
ma= Fpcosθ
a =Fpcosθ/m
The magnitude of the horizontal acceleration is Fpcosθ/m,therefore the correct option is D.
Learn more about friction from here link given below
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