Average speed is always less than or equal to average velocity this is because, displacement can never exceed the distance traveled, yet the distance traveled can exceed displacement.The average velocity is calculated by multiplying the total displacement by the entire time, v = xt, where x is the total displacement of the body and t is the time.Velocity of a body at any particular time is known as instantaneous velocity.Velocity is a function of displacement, whereas speed is a function of distance travelled.The variation between speed and velocity is that speed informs us how rapidly an object is going, but velocity tells us not only how fast an object is moving but also in which direction it is travelling.Here, we explain how both concepts are different. At that point, the magnitude of the instantaneous velocity equals the instantaneous speed.įor most of us, the concepts of speed and velocity are a little puzzling. The magnitude of velocity is the speed at which something happens right now. When an object's instantaneous velocity is measured, it tells us how fast it moves at different places in a specific time interval. Meaning that in equal intervals of time, the average velocity remains constant. Assuming that a body falls under gravity, the velocity does not vary when the body moves with terminal velocity. Assuming that a body falls under gravity with terminal velocity, what happens to the average velocity?Īns. Hence, the average speed = 200/4 = 50 km/hr. Ques 1. In order to complete a journey of 200 km, a truck needs at least 4 hrs, thus calculate its average speed.Įxplanation: Average speed = total distance/total time taken. Questions Related to Average Velocity and Speed
0 kommentar(er)
