The energy needed to melt a solid is know as the lantern heat of... ​

Aparticle initially moving east with a speed of 20.0 m/s, experiences an acceleration of 3.95 m/s, north for a time of 8.00 s. what was the speed of the particle after this acceleration, in units of m/s? give the answer as a positive number.

An object in mechanical equilibrium is an object

First to answer will be the brainliest i need the answer asap