Several forces are acting simultaneously on a ball rolling along the ground to t

Question

Several forces are acting simultaneously on a ball rolling along the ground to the right. The force of gravity on the ball is 11 N, while there is a frictional force of 8 N, and a force due to air resistance of 3 N. Recall that magnitude is the quantity or amount of a vector without the direction.

(a) Are there other forces are present? If yes what type of force?

(b) What is the magnitude(amount) of the net force in the x direction?  N
(c) What is the direction of the net force in the x direction?

upright    No forceleftdown

(d) What is the magnitude of the net force in the y direction?  
(f) What is the direction of the net force in the x direction??

upleft     rightno forcedown

Explanation / Answer

(A) since there is gravitational force acting on the ball there must be a reaction to this force which acts at the point of contact of the ball with the floor and is equal to the force of gravity which is normal force.

(B) forces acting in X direction are force due to friction and force due to air friction. Both of these forces are acting in a direction opposite to that of the motion of the ball. So net force acting on the ball in X direction is 8 Newton + 3 Newton equal to 11 Newton.

(C) since the ball is moving to the right, the force calculated in part B is acting opposite to the direction of motion of the ball that is to the left.

(D) forces acting on the ball in along the Y direction or gravitational force acting downwards and normal force acting upwards. since both of these forces are equal and opposite and there is no other force along Y direction the net force along the Y direction sums up to be zero Newton.

(F) since the force calculated in part D is zero there is no force.

please upvote to appreciate

Related Questions

Navigate

• Browse (All)
• Browse S
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.