MCQ worksheet – Fundamentals of Force 1 ) Force can cause aa. stationary object to start moving.b. moving object to change speed.c. moving object to change direction.d. all of the above 2) Examples of forces includea. motion.b. friction.c. acceleration.d. two of the above 3) If gravity pulls you down toward the center of Earth with […]
Motion graphs of vertical fall against air-drag | Motion graphs of falling objects when air resistance is present
Here we will discuss the motion graphs of vertically falling objects when air-drag or air-resistance is present. Certainly, it’s not a free fall as during free-fall air drag is ignored and only gravity is considered. But in this case, we are discussing the vertical motion which is under the influence of both gravity and air-drag. […]
Vertical motion when a ball is thrown vertically upward with derivation of equations
when a ball is thrown vertically upwards it goes up for a while and then stops and starts to come down and touches the ground. Maximum height reached, velocity at the highest point, time for upward and downward movements, velocity before touching the ground- find all these mathematically
Freefall in physics
In this post, we will find out (a) how to find the weight of a freely falling body (b) How the velocity of a freely falling body changes every second if we ignore air drag force (air resistance)? (c) Why do we feel weightless during freefall (d) Kinetic energy of a body under free fall (e) Applicability of Law of conservation of energy for free fall (e) how distance traveled per second varies
