A body is moving in a straight line at 72km per hr undergoes the acceleration of 4m/s find its speed after 2seconds
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u = 72Km/hr or 72X5/18 = 20 m/s
a= 4m/s°2 ; t = 2sec.
v=u+at
v= 20 + 4X2
v= 20 + 8
v = 28 m/s
a= 4m/s°2 ; t = 2sec.
v=u+at
v= 20 + 4X2
v= 20 + 8
v = 28 m/s
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