Escape Speed

JEE Main Physics · Gravitation · 15 questions, latest first

• If a body of mass 1 kg falls on the earth from infinity, it attains velocity (v) and kinetic energy (k) on reaching the surface…20262 April, Shift 2 · Q31
• The escape velocity from a spherical planet A is 10 km / s. The escape velocity from another planet B whose density and radius…202622 January, Shift 1 · Q28
• An object is kept at rest at a distance of 3R above the earth's surface where R is earth's radius. The minimum speed with which…20254 April, Shift 2 · Q29
• Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A: The kinetic…20254 April, Shift 1 · Q30
• Earth has mass 8 times and radius 2 times that of a planet. If the escape velocity from the earth is 11.2 km/s, the escape…202528 January, Shift 2 · Q29
• To project a body of mass m from earth's surface to infinity, the required kinetic energy is (assume, the radius of earth is R_E,…20246 April, Shift 1 · Q33
• The mass of the moon is 1/144 times the mass of a planet and its diameter is 1/16 times the diameter of a planet. If the escape…202431 January, Shift 2 · Q36
• Escape velocity of a body from earth is 11.2 km / s. If the radius of a planet be one-third the radius of earth and mass be…202430 January, Shift 2 · Q36
• Given below are two statements: Statement I: For a planet, if the ratio of mass of the planet to its radius increases, the escape…202313 April, Shift 2 · Q35
• A planet having mass 9 Me and radius 4 R_e, where M e and R e are mass and radius of earth respectively, has escape velocity in…202313 April, Shift 1 · Q36
• The ratio of escape velocity of a planet to the escape velocity of earth will be:- Given: Mass of the planet is 16 times mass of…202312 April, Shift 1 · Q36
• A space ship of mass 2 × 10^4 kg is launched into a circular orbit close to the earth surface. The additional velocity to be…202311 April, Shift 2 · Q33
• Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: Earth has…20236 April, Shift 1 · Q49
• The escape velocities of two planets A and B are in the ratio 1: 2. If the ratio of their radii respectively is 1: 3, then the…20231 February, Shift 2 · Q4
• If earth has a mass nine times and radius twice to that of a planet P. Then v_e/3 √x ms^-1 will be the minimum velocity required…20231 February, Shift 1 · Q16