Correct your friend who says "Acceleration gives an idea of how fast the position changes."

Correct your friend who says "The car rounded the curve at a constant velocity of 70 km/h".

Think how each of the list given above form an A.P. Discuss with your friends. (d) Cash prizes (in Rs.) given by a school to the toppers of classes I to XII are 200, 250, 300, 350,.......,750 respectively.

A player throws a ball upwards with an initial speed of 29.4 ms^(-1) . (a) What is the direction of acceleration during the upward motion of the ball ? (b) What are the velocity and acceleration of the ball at the highest point of its motion ? (c) Choose the x = 0 m and t = 0 s to be the location and time of the ball at its highest point, vertically downward direction to be the positive direction of x-axis, and give the signs of position, velocity and acceleration of the ball during its upward, and downward motion. (d) To what height does the ball rise and after how long does the ball return to the player’s hands ? (Take g = 9.8 ms^(-2) and neglect air resistance).

A lift is freely falling from 8th floor and is just about to stop at 4th floor. Taking ground floor as origin and positive direction upwards for displacement, velocity, acceleration. Which one of the following is correct?

How do you say combustion is an oxidation process ? Give an example.