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TEJAS ACADEMY OF SCIENCE, , Physics, Time : 1.00 hr xl Marks : 20, , , , , , Projectile Motion(11th), , 1) Asstone is thrown vertically downward with a velocity of 2 m/s from top of tower of the height 40 m., Then velocity of stone after 1 second will be :, , A) 9.8 mis B) 11.8 m/s C) 19.6 mis D) 29.4 ms, 2) Velocity-time graph for an object in motion is as shown in fig. Acceleration of an object is :, , , , A) zero B) 1m/s® C) 2m/'s? D) 4m/s®, , 3) Velocity-time graph for motion of an object In motion Is as shown In fig. Displacement of object In 5, second will be :, , , , A) 15m B) 30m C)37.5m D) 75m, , 4) Velocity_time graph represents the motion of a cyclist along a straight line, Acceleration of cyclist, during motion represented by line OA is pO, , 30, Velocity, (m4), , , , A) zero B) 2m/s? C) 4m/s? D) 6m/s?
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TEJAS ACADEMY OF SCIENCE 2, , 5) Velocity-time graph represents the motion of a cyclist along a straight line. Retardation of cyclist, during motion represented by B to C is :, , 40, , Velocity * ,, clocity, , (mA) 20 | \, 10 I \, , 0 5 17 20, , A) zero B) 5m/s® C) 10m/s* D) 15m/s?, , 6) Velocity-time graph represents the motion of a cyclist along a straight line. Distance covered by, cyclist when there is acceleration is :, , 40, , Vetocity > ;, (ms) 20 / | X, 10 I \, , 0 5 17 20, , , , A) 25m B) 50m c)75m D) 150m, , 7) Velocity-time graph represents the motion of a cyclist along a straight line. Distance covered by, cyclist during his motion represented by B to Cis, , 40, 50 A B, , Velocity |, (may 20 ff | \, , , , A) 30m B)15m Cc) 45m D) 90m, , 8) Velocity time graph represents the motion of a cyclist along a straight line. Distance covered by, cyclist when he moves with uniform velocity is :, , , , Rahul Chavan Sir 9130013007
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TEJAS ACADEMY OF SCIENCE 3, , 40, 30 A B, , Velocity |, (m A) 20 / | \, , , , A)75m B) 150m C) 300 m D) 360m, , 9) Velocity-time graph represents the motion of a cyclist along a straight line. Distance covered by, cyclist during his motion in 20 second is :, , 40, , 30 f, Velocity —*, (mA) 20 / |, 10 I \, , a 5 17 20, , A) 45m B) 75m C) 360 m D) 480 m, , 10) Velocity-time graph represents the motion of a cyclist along a straight line. Acceleration of cyclist, during its motion represented by line AB is :, , 4, 40, , 30 A B, Velocity, (mA) 20 / i \, 10 | \, , 0 5 17 20, , , , A) 10m/s? B) 5m/s? C) 2m/s? D) zero, 11) Projectile motion is :, , A) uniform motion in two dimensions, B) two dimensional motion with constant acceleration, C) two dimensional motion with constant velocity, , D) three dimensional motion with constant velocity, 12) A bomb is released by horizontally flying aeroplane. The trajectory of bomb is :, , , , Rahul Chavan Sir 9130013007
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TEJAS ACADEMY OF SCIENCE 4, , A) straight line B) parabola C) hyperbola D) circle, 13) The projectile attains maximum distance when it Is projected at angle of projection of :, A) zero B) 30° C) 45° D) 60°, , 14) The angle of projection is 30° and range of projection is R. The value of other angle of projection for, same range R is :, , A) 45° B) 60° Cc) 90° D) 120°, 15) Range of projectile is maximum when it is projected at angle of :, , A) 45° B) 50° C) 60° D) 90°, , 16) A horizontal range is four times the maximum height attained by a projectile. The angle of projection, is:, A) 45° B) 50° Cc) 60° D) 90°, , 17) A bail thrown from a field with a speed of 12 m’s at an angle of 45° with horizontal, ball will hit the, ground at a distance of :, A)10m B) 14.69 m c)i2m D) 7.35 m, , 18) A ball is thrown from a field with a speed of 7 m/s at an angle of 45° with horizontal, ball rises to, maximum height o f :, A)25m B)493m c)98m D) 19.6 m, , 19) A football is kicked al angle of 30° with horizontal with speed 20 m/s. It will hit the nearly ground at, distance of :, A)21m B) 35m c)42m D) 60m, , 20) A projectile is given an initial velocity of (i ~ 2)) m/s. where i is along the ground and j is along the, vertical. fg — 10m,s®, the equation of its trajectory is :, , A)yox 5x? B)4y 2x 5x? Cy 2x 5x? D)4y 2x 25x?, , , , Rahul Chavan Sir 9130013007
