A man pushes a shopping cart at a constant speed. What happens if the mar increases the force on the cart?

A. The car accelerates

B. The cart slows down

C. The cart becomes more massive

D. The cart becomes less massive

Sound energy is produced when an object vibrates. examples are 1- a balloon popping2-a whistle3- a waterfall

During the 1800s. hope this !

I'm having some difficulty seeing the diagram clearly.but the question says there's a net inward force on the object.so we know right away,  from newton's 2nd law of motion, thatthat baby is accelerating.  it doesn't even matter which way thenet force is pointing.  if there's any net force, then either theobject's speed or else its direction must be changing.