362298 A train starting from rest first accelerates uniformly up to a speed of \(80\;km/h\) for time \(t\), then it moves with a constant speed for time \(3\,t\). The average speed of the train for this duration of journey will be (in \(km/h\) )

362299 A body travelling with uniform acceleration crosses two points \(A\) and \(B\) with velocities \(20\,m/s\) and \(30\,m/s\) respectively. The speed of the body at mid-point of \(A\) and \(B\) is

362300 The velocity of a particle at an instant is \(10\;m{s^{ - 1}}.\) After \(3 s\) its velocity will become \(16\;m{s^{ - 1}}.\) The velocity at \(2 s\), before the given instant would have been

362301 A bullet emerges from a barrel of length \(1.2\,m\) with a speed of \(640\,m{s^{ - 1}}\). Assuming contant acceleration, the approximate time that it spends in the barrel after the gun is fired is

362298 A train starting from rest first accelerates uniformly up to a speed of \(80\;km/h\) for time \(t\), then it moves with a constant speed for time \(3\,t\). The average speed of the train for this duration of journey will be (in \(km/h\) )

362299 A body travelling with uniform acceleration crosses two points \(A\) and \(B\) with velocities \(20\,m/s\) and \(30\,m/s\) respectively. The speed of the body at mid-point of \(A\) and \(B\) is

362300 The velocity of a particle at an instant is \(10\;m{s^{ - 1}}.\) After \(3 s\) its velocity will become \(16\;m{s^{ - 1}}.\) The velocity at \(2 s\), before the given instant would have been

362301 A bullet emerges from a barrel of length \(1.2\,m\) with a speed of \(640\,m{s^{ - 1}}\). Assuming contant acceleration, the approximate time that it spends in the barrel after the gun is fired is

362298 A train starting from rest first accelerates uniformly up to a speed of \(80\;km/h\) for time \(t\), then it moves with a constant speed for time \(3\,t\). The average speed of the train for this duration of journey will be (in \(km/h\) )

362299 A body travelling with uniform acceleration crosses two points \(A\) and \(B\) with velocities \(20\,m/s\) and \(30\,m/s\) respectively. The speed of the body at mid-point of \(A\) and \(B\) is

362300 The velocity of a particle at an instant is \(10\;m{s^{ - 1}}.\) After \(3 s\) its velocity will become \(16\;m{s^{ - 1}}.\) The velocity at \(2 s\), before the given instant would have been

362301 A bullet emerges from a barrel of length \(1.2\,m\) with a speed of \(640\,m{s^{ - 1}}\). Assuming contant acceleration, the approximate time that it spends in the barrel after the gun is fired is

362298 A train starting from rest first accelerates uniformly up to a speed of \(80\;km/h\) for time \(t\), then it moves with a constant speed for time \(3\,t\). The average speed of the train for this duration of journey will be (in \(km/h\) )

362299 A body travelling with uniform acceleration crosses two points \(A\) and \(B\) with velocities \(20\,m/s\) and \(30\,m/s\) respectively. The speed of the body at mid-point of \(A\) and \(B\) is

362300 The velocity of a particle at an instant is \(10\;m{s^{ - 1}}.\) After \(3 s\) its velocity will become \(16\;m{s^{ - 1}}.\) The velocity at \(2 s\), before the given instant would have been

362301 A bullet emerges from a barrel of length \(1.2\,m\) with a speed of \(640\,m{s^{ - 1}}\). Assuming contant acceleration, the approximate time that it spends in the barrel after the gun is fired is