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JEE PHYSICS MCQ: MOTION IN PLANE
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Two particles are projected in air with same speed at angle and (both acute) to the vertical, respectively. If the maximum height reached by the first particle is equal to that of second, then which of the following is correct?
( and are time of flight of two particles respectively)
( and are time of flight of two particles respectively)
View answer and explanation
Correct option: D
Option D () is correct because if the maximum heights are equal, the angles to the vertical are equal, leading to equal times of flight.
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Reason: For two-dimensional or three-dimensional motion, velocity and acceleration of an object works in opposite direction. and
. Then, the angle between and is At the top of the trajectory of a projectile, the direction of its velocity and acceleration are A ball is thrown at an angle and another ball is thrown at an angle with the horizontal direction from the same point with velocity . The second ball reaches higher than the first ball. Find their individual heights. Take . Assertion: The drover in a vehicle moving with a constant speed on a straight road is in a non-inertial frame of reference.
Reason: A reference frame in which Newton's laws of motion are applicable is non-inertial.
