Four students perform an experiment by pulling an object horizontally across a frictionless table. They repeat the experiment on several other objects of different masses, always applying just enough force to produce the same acceleration. All of them, graph the results, individually. Which student's graph is correct?

Two cardboard boxes full of books are in contact with each other on a frictionless table. Box $H$ has twice the mass of box $G.$ If you push on box $G$ with a horizontal force $F,$ then box $H$ will experience a net force of

An Olympic diver dives off the high-ding platform. The magnitude of his momentum will be a maximum at point

What is the magnitude of the impulse of force shown in the following figure?

What is the impulse of force shown in the following figure?

A $0.5 \mathrm{kg}(4.9 \mathrm{N})$ book rests on your desk. An additional force $F=1.1 \mathrm{N}$ is applied on this book in vertically downward direction. Normal reaction on this book will be?