True or false
6. Velocity of an object in uniform circular motion is constant.
7. A car moving on a crowded road with a number of traffic red signals is in non-uniform motion.
8. Displacement of a body can be positive or zero, but never negative.
9. Angular displacement is measured in radians.
10. A freely falling body is uniformly accelerated.
Answers
6. False it is because the direction of velocity always changes only magnitude of velocity remains constant but direction is constantly changing so velocity of an body in in uniform circular motion is not constant
7. True it's because the speed will not remain constant
8. False if we consider the motion of the body in a xy plane if positive x axis is taken as positive direction and if the body moves along the negative direction the displacement of the body is negative
but if they do not consider the xy-plane the displacement cannot be negative
9. true angular displacement is measured in radians because it is angle turn by the body with respect to initial position.
10. true A freely falling body is uniformly accelerated enter value is equal to g i.e acceleration due to gravity of Earth