146356 The force on a rocket moving with a velocity \(300 \mathrm{~m} / \mathrm{s}\) is \(210 \mathrm{~N}\). The rate of consumption of fuel of rocket is

146357 A \(5000 \mathrm{~kg}\) rocket is set for vertical firing. The exhaust speed is \(800 \mathrm{~ms}^{-1}\). To give an initial upward acceleration of \(20 \mathrm{~m} / \mathrm{s}^{2}\), the amount of gas ejected per second to supply the needed thrust will be \(\left(\mathrm{g}=10 \mathrm{~ms}^{-2}\right)\)

146358 A bullet is fired from a gun. The force on the bullet is given by \(F=600-2 \times 10^{5} t\), where \(F\) is in Newton and \(t\) in second. The force on the bullet becomes zero as soon as it leaves the barrel. What is the average impulse imparted to the bullet?

146359 A rocket of mass \(1000 \mathrm{~kg}\) is to be projected vertically upwards. The gases are exhausted vertically downwards with velocity \(100 \mathrm{~ms}^{-1}\) with respect to the rocket. What is the minimum rate of burning of fuel, so as to just lift the rocket upwards of fuel, so as to just lift the rocket upwards against, the gravitational attraction? (Take \(g=10 \mathrm{~ms}^{-2}\) )

146356 The force on a rocket moving with a velocity \(300 \mathrm{~m} / \mathrm{s}\) is \(210 \mathrm{~N}\). The rate of consumption of fuel of rocket is

146357 A \(5000 \mathrm{~kg}\) rocket is set for vertical firing. The exhaust speed is \(800 \mathrm{~ms}^{-1}\). To give an initial upward acceleration of \(20 \mathrm{~m} / \mathrm{s}^{2}\), the amount of gas ejected per second to supply the needed thrust will be \(\left(\mathrm{g}=10 \mathrm{~ms}^{-2}\right)\)

146358 A bullet is fired from a gun. The force on the bullet is given by \(F=600-2 \times 10^{5} t\), where \(F\) is in Newton and \(t\) in second. The force on the bullet becomes zero as soon as it leaves the barrel. What is the average impulse imparted to the bullet?

146359 A rocket of mass \(1000 \mathrm{~kg}\) is to be projected vertically upwards. The gases are exhausted vertically downwards with velocity \(100 \mathrm{~ms}^{-1}\) with respect to the rocket. What is the minimum rate of burning of fuel, so as to just lift the rocket upwards of fuel, so as to just lift the rocket upwards against, the gravitational attraction? (Take \(g=10 \mathrm{~ms}^{-2}\) )

146356 The force on a rocket moving with a velocity \(300 \mathrm{~m} / \mathrm{s}\) is \(210 \mathrm{~N}\). The rate of consumption of fuel of rocket is

146357 A \(5000 \mathrm{~kg}\) rocket is set for vertical firing. The exhaust speed is \(800 \mathrm{~ms}^{-1}\). To give an initial upward acceleration of \(20 \mathrm{~m} / \mathrm{s}^{2}\), the amount of gas ejected per second to supply the needed thrust will be \(\left(\mathrm{g}=10 \mathrm{~ms}^{-2}\right)\)

146358 A bullet is fired from a gun. The force on the bullet is given by \(F=600-2 \times 10^{5} t\), where \(F\) is in Newton and \(t\) in second. The force on the bullet becomes zero as soon as it leaves the barrel. What is the average impulse imparted to the bullet?

146359 A rocket of mass \(1000 \mathrm{~kg}\) is to be projected vertically upwards. The gases are exhausted vertically downwards with velocity \(100 \mathrm{~ms}^{-1}\) with respect to the rocket. What is the minimum rate of burning of fuel, so as to just lift the rocket upwards of fuel, so as to just lift the rocket upwards against, the gravitational attraction? (Take \(g=10 \mathrm{~ms}^{-2}\) )

146356 The force on a rocket moving with a velocity \(300 \mathrm{~m} / \mathrm{s}\) is \(210 \mathrm{~N}\). The rate of consumption of fuel of rocket is

146357 A \(5000 \mathrm{~kg}\) rocket is set for vertical firing. The exhaust speed is \(800 \mathrm{~ms}^{-1}\). To give an initial upward acceleration of \(20 \mathrm{~m} / \mathrm{s}^{2}\), the amount of gas ejected per second to supply the needed thrust will be \(\left(\mathrm{g}=10 \mathrm{~ms}^{-2}\right)\)

146358 A bullet is fired from a gun. The force on the bullet is given by \(F=600-2 \times 10^{5} t\), where \(F\) is in Newton and \(t\) in second. The force on the bullet becomes zero as soon as it leaves the barrel. What is the average impulse imparted to the bullet?

146359 A rocket of mass \(1000 \mathrm{~kg}\) is to be projected vertically upwards. The gases are exhausted vertically downwards with velocity \(100 \mathrm{~ms}^{-1}\) with respect to the rocket. What is the minimum rate of burning of fuel, so as to just lift the rocket upwards of fuel, so as to just lift the rocket upwards against, the gravitational attraction? (Take \(g=10 \mathrm{~ms}^{-2}\) )