A ball of mass m= 0.6 kg is launched downwards, from rest, on an inclined plane forming angle 30° with the horizontal (g= 10 m/s²). Friction is neglected.
a) Draw a figure and represent the forces acting on the ball.
b) Use Newton's 2nd law to determine the acceleration of the ball.
c) Find the velocity at any instant.
d) Derive the position vector, then deduce the trajectory of the moving ball.​