NEET 2020 Physics: Kinematics - 04 Quiz (14.12.2019)

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Question 1

A particle starting from the origin (0,0) moves in a straight line in the (x, y) plane. Its coordinates at a later time are (, 3). The path of the particle makes with the x-axis an angle of:

• A30 °
• B45 °
• C60 °
• D0 °

Question 2

A projectile is fired with a velocity u at angle with the ground surface. During the motion at any time it is making an angle with the ground surface. The speed of particle at this time will be

• A
• B
• C
• D

Question 3

Two paper screens A and B are separated by 150 m. A bullet pierces A and B. The hole in B is 15 cm below the hole in A. If the bullet is traveling horizontally at the time of hitting A, then velocity of the bullet at A is (g = 10 ms^–2)

• A m/s
• B m/s
• C m/s
• D m/s

Question 4

A fireman weighing 80 kg slides down a pole. If the resisting force of friction is 720 N, his acceleration would be : (take g = 10 m/s²)

• A0.11 m/s²
• B0.9 m/s²
• C1 m/s²
• Dzero

Question 5

A bullet fired at an angle of 30 ° with the horizontal hit the ground 3 km away. By adjusting its angle of projection, can one hope to hits a target 5 km away. Assume the muzzle speed to be same and the air resistance is negligible:

• Apossible to hit a target 5 km away
• Bnot possible to hit a target 5 km away
• Cprediction is not possible
• Dnone of the above

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