A 180 metre long train is moving due north at a speed of 25 m/s. A small bird is flying due south, a little above the train, with a speed of 5 m/s. The time taken by the bird to cross the train is
1.10 s
2.12 s
3.9 s
4.6 s
Posted Date:-2022-07-28 23:33:35
A body starts from rest and travels for five seconds to make a displacement of 25 m if it has travelled the distance with uniform acceleration a then a is
1.3 m/s²
2.4 m/s²
3.2 m/s²
4.1 m/s²
Posted Date:-2022-07-28 23:48:30
A body starts from rest and travels for t second with uniform acceleration of 2 m/s². If the displacement made by it is 16 m, the time of travel t is
1.4 s
2.3 s
3.6 s
4.8 s
Posted Date:-2022-07-28 23:38:04
A body starts from rest and travels with an acceleration of 2 m/s². After t seconds its velocity is 10 m/s . Then t is
1.10 s
2.5 s
3.20 s
4. 6 s
Posted Date:-2022-07-28 23:44:01
A body starts from rest and travels with an acceleration of 2 m/s². After t seconds its velocity is 10 m/s. Then t is
1.10 s
2. 5 s
3.20 s
4.6 s
Posted Date:-2022-07-28 23:47:36
A body starts from rest and travels with uniform acceleration a to make a displacement of 6 m. If its velocity after making the displacement is 6 m/s, then its uniform acceleration a is
1. 6 m/s²
2.2 m/s²
3.3 m/s²
4.4 m/s²
Posted Date:-2022-07-28 23:50:50
A body starts from rest and travels with uniform acceleration of 2 m/s². If its velocity is v after making a displacement of 9 m, then v is
1.8 m/s
2.6 m/s
3.10 m/s
4.4 m/s
Posted Date:-2022-07-28 23:46:09
A boy starts from a point A, travels to a point B at a distance of 1.5 km and returns to A. If he takes one hour to do so, his average velocity is
1.3 km/h
2.zero
3.1.5 km/h
4.2 km/h
Posted Date:-2022-07-28 23:34:18
A boy starts from a point A, travels to a point B at a distance of 3 km from A and returns to A. If he takes two hours to do so, his speed is
1.3 km/h
2.zero
3.2 km/h
4.1.5 km/h
Posted Date:-2022-07-28 23:32:16
The displacement in metres of a body varies with time t in second as y = t2 – t – 2. The displacement is zero for a positive of t equal to
1.1 s
2.2 s
3.3 s
4.4 s
Posted Date:-2022-07-28 23:53:40
Which one of the following is the unit of velocity?
1. kilogram
2.metre
3.m/s
4.second
Posted Date:-2022-07-28 23:36:49
Which one of the following is the unit of velocity?
1.kilogram
2.metre
3.m/s
4.second
Posted Date:-2022-07-28 23:51:48