Motion in 1D and 2D — velocity, acceleration, projectile and relative motion.
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Q1 · Kinematics · MEDIUM
A particle's position is given by x = 3t² - 2t + 5 (in SI units). Its velocity at t = 2 s is:
Q2 · Kinematics · EASY
A car travels the first half of a distance at speed v₁ and the second half at speed v₂. The average speed for the whole journey is:
Q3 · Kinematics · MEDIUM
A ball is thrown vertically upward with velocity u. The ratio of distances covered in the last two seconds of upward motion is:
Q4 · Kinematics · EASY
A particle moves with uniform velocity. Which of the following statements is correct?
Q5 · Kinematics · HARD
A particle is moving in a circle of radius r with constant speed v. The magnitude of average acceleration between two points separated by an angle of 60° on the circle is: