Question

1. A particle is moving in a circular path of radius r. The displacement after covering one-fourth of the circle would be_____ 2. An automobile is moving with a uniform velocity of 40 km/h. Its acceleration after 1 hour will be______ 3. When the velocity of a body increases with time, its acceleration is_____4. The displacement of a satellite when it makes a complete round along its circular orbit is_____​

Answer 1

Explanation:

Displacement at half path is the shortest distance between the initial and final point.

So, it's equal to twice the radius of the circle =2r

solution