# In a situation the contact force by a rough horizontal surface on a body placed on it has constant magnitude. If the angle between this force and the vertical is decreased, the frictional force between the surface and the body willA. increaseB. decreaseC. remain the sameD. may increase or decrease.

Let us assume that the force F is applied on the body making an angle θ with the vertical. By resolving the component of force F, the horizontal component Fsinθ is equal to the frictional force. So, as the value of θ decreases, frictional force also decreases. It is already given that force F is constant, so frictional force will decrease.

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
HCV Objective Questions of Friction63 mins
Friction | Get the Basics53 mins
Friction ke kuch dhamakedaar questions46 mins
Interactive Quiz on Friction important questions47 mins
Friction ke kuch dhamakedaar questions | Check Yourself56 mins
Interactive Quiz of friction | Matering important chapters45 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses