Rankers Physics

Kinematics of Circular Motion: Practice Problem & Solution

A block on a stationary horizontal table with increasing speed in a circle is seen from an inertial frame of reference. The angle between net force on the block and velocity vector is :
Greater than 90°
Less than 90°
Equal to 90°
Data is insufficient

Solution Explained:

To solve this problem, we apply the core principles of Kinematics of Circular Motion. Understanding the underlying formula is key to arriving at the correct answer below:

When net acceleration makes acute angle with velocity, speed of the particle will increase. As tangential accleration is positive, speed will increase.

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