Physics

Kinematics and Dynamics of Motion

121 Questions

Kinematics and dynamics explore projectile motion, inertia, free fall, and kinetic energy. These physics topics frequently appear in general science papers of major competitive exams. Practice these questions to understand the mechanical laws of motion.

Projectile motionFree fall calculationsInertia conceptsKinetic energyImpulse and collision

Kinematics and Dynamics of Motion Questions

Multiple choice

A ball is thrown vertically upwards at a speed of 10 m/s. What is its velocity after 2 seconds?

  1. 10 m/s

  2. 0 m/s

  3. -10 m/s

  4. -20 m/s
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Using the equation of motion, v = u + at, where u is the initial velocity, a is the acceleration due to gravity (-9.8 m/s^2), and t is the time, we can calculate the velocity after 2 seconds: v = 10 m/s + (-9.8 m/s^2) * 2 s = -20 m/s.