Answer:
No acceleration. All of the forces are acting equally on the paper air plane therfore It isn't going to move any where.
10 cm3 because the density equition is d = m/v
In order to make the athletic shoe to slide faster of a given surface you had to reduce the friction coefficient of the shoe with the surface.
One way to do that is to put some grease of the sole of the shoe, which undoubtedly would reduce the friction coefficient drastically and the shoe would slide more easily.
Also, if you make the sole smoother the shoe the friction coefficient would decrease and, again, the show would slide mor easily.
Ask ya mother .. she birthed you so she’ll know .
Answer:
I would recommend placing something on the ground or on the walls of your gym to damped the echos.
Explanation: