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An object starts from rest with constant acceleration 4 m/s^2, then find the distance travelled by object in 5th half seconds.

Vikash Kumar Singh , 8 Years ago
Grade 12th pass
anser 2 Answers
sonika p
initial velocity, u=0, a=4m/s2
distance travelled in time t =1/2*a*(t^2)
distance travelled in 5th half seconds = total distance travelled – distance travelled in 4th half seconds
                                                            = 1/2[a*t*t]-1/2[a*t*t]
                                                             =1/2[4*(5/2)^2]-1/2[4*(4/2)^2]
                                                              =1/2[4*(25-16)/4]
                                                               =1/2*(9)=4.5m
thus, distance travelled in 5th half seconds is 4.5m
 
Last Activity: 8 Years ago
Harsh Sharma
the velocity of an object is changing with time and relation is given by the following equation.v=2t+3t^2.calculate the position of the object at t=2s.Assume that the particle to be at origin at t=0.
Last Activity: 4 Years ago
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