Guy's plz answer these questions very urgent ...
Answers
Explanation:
1. acceleration
2. yes, if the object is at rest
3. UCM is the motion of an object if it moves on circular path with constant angular rate of rotation Or with constant speed
4. It helps to prevent injury in the case of a car crash by decreasing the velocity of a body as it undergoes a sudden reduction in speed i. e. inerta of motion
A seatbelt expands the stopping force required to decelerate the rider across their body. This stops the body from hitting the steering column or windshield of a high-speed car, which could easily result in injury or even death.
The belt is designed to apply most of the stopping force required to the rib cage and pelvis both of which are relatively robust.
5.
when the object was changing position at a constant velocity, the acceleration was 0. This is because the object is no longer changing its velocity and is moving at a constant rate