Tiêu đề Motion & Force Test By Sir Shahid.pdf ✅

www.youtube.com/physicswithshahid MOTION & FORCE (UNIT-1) MDCAT Q5. A projectile is launched at an angle to the horizontal at time 10. It travels over horizontal ground, as shown. Assume that air resistance is negligible. Which graph best shows the variation with t of the speed of the projectile from when it is launched to when it lands on the ground? (A) (B) (C) (D) Q6. In the absence of air resistance, a stone is thrown from P and follows a parabolic path in which the highest point reached is T. The stone reaches point Q just before landing. The vertical component of acceleration of the stone is (A) zero at T (B) larger at T than at Q. (C) larger at Q than at T (D) the same at Q as at T. Q7. A ball is released from rest at time zero. After 1.0s it bounces inelastically from a horizontal surface and rebounds, reaching the top of its first bounce after 1.5s. What is the total displacement of the ball from its original position after 1.5 s? (A) 1.25 m (B) 3.75 m (C) 5.00 m (D) 6.25 m

www.youtube.com/physicswithshahid MOTION & FORCE (UNIT-1) MDCAT Q12. A ball of mass 0.5 kg is thrown against a wall at a speed of 12 ms-1 . It bounces back with a speed 8ms-1 . The collision lasts for 0.10s. What is the average force on the ball due to the collision? (A) 0.2 N (B) 1 N (C) 20 N (D) 100 N Q13. Which row correctly states whether momentum and kinetic energy are conserved in an inelastic collision in which there are no external forces? Momentum kinetic energy A conserved conserved B conserved not conserved C not conserved conserved D not conserved not conserved Q14. The graph shows how the force acting on a body varies with time. Assuming that the body is moving in straight line, by how much does its momentum change? (A) 40 kgms-1 (B) 36 kg ms-1 (C) 20 kg ms-1 (D) 16 kg ms-1 Q15. A ball takes “t” second to fall from a height h1 and another ball takes ‘2t’ second to fall from a height h2 then h1/h2 is: (A) 2 (B) 4 (C) 0.5 (D) 0.25 Q16. If the range of a projectile is R, the potential energy will be maximum after the projectile has covered (from start) distance equal to: (A) R 2 (B) R 4 (C) R (D) R 9 Q17. In case of a projectile, the velocity is perpendicular to acceleration during flight: (A) once only (B) twice (C) thrice (D) four time