Question

Define speed &velocity. Write the SIunits. About is moving with a velocity of 15ms-1.If the motion is uniform,what will be velocity after 10s

Answer 1

Answer:

Explanation: speed is rate of change of distance with respect time and velocity is rate of change of displacement with respect to time . The si unit of speed and velocity is m/s -1 . If the object is in motion so after 10 sec its velocity will same .

Answer 2

Answer:

Speed and velocity are both measured using the same units. The SI unit of distance and displacement is the meter. The SI unit of time is the second. The SI unit of speed and velocity is the ratio of two the meter per second .

Explanation:

u=15m/s

v=15m/s

t=10sec

velocity=u+v/2

          =  15+15/2

             =30/2

             =15m/s  as, a body is in uniform motion .so,there is no change.    

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