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Projectile Motion” MCQS(part-2)
1. A body of mass m, projected at an angle of θ from the ground with an initial velocity of v, acceleration due to gravity is g, what is the maximum horizontal range covered? a) R = v2 (sin 2θ)/g b) R = v2 (sin θ)/2g c) R = v2 (sin 2θ)/2g d) R = v2 (sin θ)/g 2. A body of mass 5 kg, projected at an angle of 60° from the ground with an initial velocity of 25 m/s, acceleration due to gravity is g = 10 m/s2, what is the maximum horizontal range covered? a) 54.13 m b) 49 m c) 49.16 m d) 60 m 3. A body of mass 10 kg, projected at an angle of 30° from the ground with an initial velocity of 5 m/s, acceleration due to gravity is g = 10 m/s2, what is the time of flight? a) 0.866s b) 1.86 s c) 1.96 s d) 1.862s 4. On calculating which of the following quantities, the mass of the body has an effect in simple projectile motion? a) Velocity b) Force c) Time of flight d) Range 5. A ball of mass 100 g, projected at an angle of 30° from the ground with an initial velocity of 11 m/s, acceleration due to ...
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Motion in a Straight Line Class 11 MCQs(part-1) Questions with Answers
1. Which one of the following Cartesian coordinate systems is not followed in physics? Ans: d 2. Identify the unit vector in the following. Ans: d 3. Which one of the following physical quantities cannot be represented by a scalar? (a) Mass (b) length (c) momentum (d) magnitude of acceleration 4. Two objects of masses m 1 and m 2 fall from the heights h 1 and h 2 respectively. The ratio of the magnitude of their momenta when they hit the ground is Ans: c 5. If a particle has negative velocity and negative acceleration, its speed (a) increases (b) decreases (c) remains same (d) zero 6. If the velocity is , then the magnitude of acceleration at t = 0.5 s is (a) 1m s -2 (b) 2 m s -2 (c) zero (d) -1 m s -2 7. If an object is dropped from the top of a building and it reaches the ground at t = 4 s , then the height of the building is (ignoring air resistance) (g = 9.8 ms –2 ) ...
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