Abicycle tales 8.0 secounds to accelerate at a constant rate from rest to a speed of 4.0ms^2. if the mass of the bicycle and the rider tiger is 85kg what is the net force acting on the bicycle ?

Aball thrown by ginger is moving upward through the air. diagram a shows a box with a downward arrow. diagram b shows a box with an upward arrow. diagram c shows a box with a downward and upward arrow equal in size. diagram d shows a box with a downward and upward arrow with the downward arrow larger in size. which force diagram represents the forces on the ball? you may neglect the effects of air resistance.