P1 Extended Responses To Memerse Flashcards
A ball is attached to a string and is rotated horizontally so that it has circular motion use newtons three laws to describe the balls motion
Newton’s first law
The board has a constant speed however its velocity is not constant as its direction is changing constantly therefore the ball is accelerating as the velocity changes constantly and this velocity is perpendicular to the force action towards the centre of the circle
Newton second law
The force on the ball causes the ball to accelerate in the direction of the force. This is the centripetal force which acts towards the centre of the circle.
Newton’s third law
The ball will tug on the string/the central support point with a force that is equal and opposite to the force pulling on the ball from the centre
