Joe wants to buy a fast car and is looking at a car that can accelerate from 45 to 60 in 3.5 seconds. Determine the acceleration of this car and if it is fast given that most sports cars can accelerate at 7.66 [[m/s?1].

Protons and neutrons are found within the nucleus of an atom

Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 790 n/m. it is initially at rest on an inclined plane that is at an angle of 28 degrees with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is k = 0.14. in the initial position, where the spring is compressed by a distance of a = 0.18 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. b) if the spring pushes the block up the incline, what distance, l, in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.

What is the final velocity of the initial velocity of 25 and -50?