Question

state which of the following situations are possible and give an example for each of the following
(a) an object with a constant acceleration but with zero velocity.
(b) an object moving in a certain direction with an acceleration in the perpendicular direction​

Answer 1

PART I

SUPPOSE YOU THROW A PARTICLE OF SOME MASS IN UPWARD DIRECTION WITH SOME INITIAL VELOCITY. THAN I THIS CASE THE ACCELERATION DUE TO GRAVITY IS IN OPPOSITE TO THAT OF VELOCITY SO VELOCITY STARTS DECREASING BUT AT THE HIGHEST POINT OF IT'S JOURNEY THE MAGNITUDE OF THE VELOCITY BECOME ZERO BUT THE ACCELERATION DUE TO GRAVITY IS KEEP ON ACTING ON THE PARTICLE FOR SOME SHORT PERIOD OF TIME........•^•

PART II

THIS IS AN INTERESTING ONE I WILL PROVIDE YOU TWO SUCH EXAMPLE SO THAT YOU UNDERSTAND IT PROPERLY....°•°

(A) WHEN YOU ARE MOVING IN A HORIZONTAL PLANE WITH CONSTANT VELOCITY THAT THE ACCELERATION DUE TO GRAVITY IS PERPENDICULAR TO THE VELOCITY AS WELL AS WITH THE DISPLACEMENT.

(B) WHEN YOU THROW A BODY AT PARTICULAR ANGLE THAN AT HIGHEST POINT OF IT'S JOURNEY THE TOTAL VELOCITY BECOME HORIZONTAL HENCE AGAIN ACCELERATION DUE TO GRAVITY IS PERPENDICULAR TO THAT OF VELOCITY AS WELL AS DISTANCE TRAVELED.....•^•