What allows a tightrope walker to walk across the rope?
tension
air resistance
friction
magnetic force
Isabella pushes a box with a force of 20 N. It accelerates at 2 m/s/s. What is the mass of the box?
10 kg
40 kg
22 kg
cannot be determined
tension
air resistance
friction
magnetic force
Isabella pushes a box with a force of 20 N. It accelerates at 2 m/s/s. What is the mass of the box?
10 kg
40 kg
22 kg
cannot be determined