A 21 kg suitcase is being pulled with constant speed by a handle that is at an angle of 30 degrees above the horizontal.
a.)If the normal force exerted on the suitcase is 180 N , what is the force F applied to the handle? At the local grocery store, you push a 14.0 kg shopping cart. You stop for a moment to add a bag of dog food to your cart. With a force of 13.0 N , you now accelerate the cart from rest through a distance of 2.30 m in 2.65 s.
b.) What was the mass of the dog food?