268720 A ship of mass \(3 \times 10^{7} \mathrm{~kg}\) initially at rest is pulled by a force of \(5 \times 10^{4} \mathrm{~N}\) through a distance of 3 meters. Assuming that the resistance due to water is negligible, the speed of the ship is

268721 A vehicle of mass \(1000 \mathrm{~kg}\) is moving with a velocity of \(15 \mathbf{~ m s}^{-1}\). It is brought to rest by applying brakes and locking the wheels. If the sliding friction between the tyres and the road is \(6000 \mathrm{~N}\), then the distance moved by the vehicle before coming to rest is

268722 The workdone to accelerate a body from 30 \(\mathrm{ms}^{-1}\) to \(60 \mathrm{~ms}^{-1}\) is three times the work done to accelerate it from \(10 \mathrm{~ms}^{-1}\) to ' \(v\) '. The value of ' \(v\) 'in \(\mathbf{~ m s}^{-1}\) is

268770 A bullet of mass\(10 \mathrm{gm}\) is fired horizontally with a velocity \(1000 \mathrm{~ms}^{-1}\) from a riffle situated at a height \(50 \mathrm{~m}\) above the ground. If the bullet reaches the ground with a velocity \(500 \mathrm{~ms}^{-1}\), the work done against air resistance in the trajectory of the bullet is (in joule) \(\left(g=10 \mathrm{~ms}^{-2}\right)\)

268720 A ship of mass \(3 \times 10^{7} \mathrm{~kg}\) initially at rest is pulled by a force of \(5 \times 10^{4} \mathrm{~N}\) through a distance of 3 meters. Assuming that the resistance due to water is negligible, the speed of the ship is

268721 A vehicle of mass \(1000 \mathrm{~kg}\) is moving with a velocity of \(15 \mathbf{~ m s}^{-1}\). It is brought to rest by applying brakes and locking the wheels. If the sliding friction between the tyres and the road is \(6000 \mathrm{~N}\), then the distance moved by the vehicle before coming to rest is

268722 The workdone to accelerate a body from 30 \(\mathrm{ms}^{-1}\) to \(60 \mathrm{~ms}^{-1}\) is three times the work done to accelerate it from \(10 \mathrm{~ms}^{-1}\) to ' \(v\) '. The value of ' \(v\) 'in \(\mathbf{~ m s}^{-1}\) is

268770 A bullet of mass\(10 \mathrm{gm}\) is fired horizontally with a velocity \(1000 \mathrm{~ms}^{-1}\) from a riffle situated at a height \(50 \mathrm{~m}\) above the ground. If the bullet reaches the ground with a velocity \(500 \mathrm{~ms}^{-1}\), the work done against air resistance in the trajectory of the bullet is (in joule) \(\left(g=10 \mathrm{~ms}^{-2}\right)\)

268720 A ship of mass \(3 \times 10^{7} \mathrm{~kg}\) initially at rest is pulled by a force of \(5 \times 10^{4} \mathrm{~N}\) through a distance of 3 meters. Assuming that the resistance due to water is negligible, the speed of the ship is

268721 A vehicle of mass \(1000 \mathrm{~kg}\) is moving with a velocity of \(15 \mathbf{~ m s}^{-1}\). It is brought to rest by applying brakes and locking the wheels. If the sliding friction between the tyres and the road is \(6000 \mathrm{~N}\), then the distance moved by the vehicle before coming to rest is

268722 The workdone to accelerate a body from 30 \(\mathrm{ms}^{-1}\) to \(60 \mathrm{~ms}^{-1}\) is three times the work done to accelerate it from \(10 \mathrm{~ms}^{-1}\) to ' \(v\) '. The value of ' \(v\) 'in \(\mathbf{~ m s}^{-1}\) is

268770 A bullet of mass\(10 \mathrm{gm}\) is fired horizontally with a velocity \(1000 \mathrm{~ms}^{-1}\) from a riffle situated at a height \(50 \mathrm{~m}\) above the ground. If the bullet reaches the ground with a velocity \(500 \mathrm{~ms}^{-1}\), the work done against air resistance in the trajectory of the bullet is (in joule) \(\left(g=10 \mathrm{~ms}^{-2}\right)\)

268720 A ship of mass \(3 \times 10^{7} \mathrm{~kg}\) initially at rest is pulled by a force of \(5 \times 10^{4} \mathrm{~N}\) through a distance of 3 meters. Assuming that the resistance due to water is negligible, the speed of the ship is

268721 A vehicle of mass \(1000 \mathrm{~kg}\) is moving with a velocity of \(15 \mathbf{~ m s}^{-1}\). It is brought to rest by applying brakes and locking the wheels. If the sliding friction between the tyres and the road is \(6000 \mathrm{~N}\), then the distance moved by the vehicle before coming to rest is

268722 The workdone to accelerate a body from 30 \(\mathrm{ms}^{-1}\) to \(60 \mathrm{~ms}^{-1}\) is three times the work done to accelerate it from \(10 \mathrm{~ms}^{-1}\) to ' \(v\) '. The value of ' \(v\) 'in \(\mathbf{~ m s}^{-1}\) is

268770 A bullet of mass\(10 \mathrm{gm}\) is fired horizontally with a velocity \(1000 \mathrm{~ms}^{-1}\) from a riffle situated at a height \(50 \mathrm{~m}\) above the ground. If the bullet reaches the ground with a velocity \(500 \mathrm{~ms}^{-1}\), the work done against air resistance in the trajectory of the bullet is (in joule) \(\left(g=10 \mathrm{~ms}^{-2}\right)\)