Asupra unui corp, aflat iniţial în repaus, acţionează succesiv trei forţe: F1=10N, F2=4N şi F3=–15N. Duratele acţiunilor sunt:
t1=4s, t2=14s respectiv t3=2s. Cu ce forţă constantă s-ar obţine
aceeaşi viteză finală a corpului în:

According to newton's second law, when the same force is applied to two objects of different masses, a the object with greater mass will experience a great acceleration, and the object with less mass will experience an even greater acceleration, b. the object with greater mass will experience a smaller acceleration, and the object with less mass will experience a greater acceleration, c. the object with greater mass will experience a greater acceleration, and the object with less mass will experience a smaller acceleration, d. the object with greater mass will experience a small acceleration, and the object with less mass will experience an even smaller acceleration.

Astudent pushes a 60-n block across the floor for a distance of 10 m. how much work was done to move the block

Acamcorder has a power rating of 20 watts. if the output voltage from its battery is 9 volts, what current does it use?