There are not any answers to the velocity test online. People looking for the answers will need to review the course textbooks.
zero because the initial and final velocity is constant . so,difference bet. final velocity and initial velocity is zero
final velocity-initial velocity --------------------------------- time
Yes. If a fast moving body has an impact with another fast moving body, the velocity of that initial body will be transferred into the latter body.
Acceleration = Final velocity - Initial velocity / time
Define a moving coordinate system with respect to a stationary object.
Acceleration:Always the same, doesn't need to be calculated. Acceleration of gravity = 9.8 meters (32.2 ft) per second2Acceleration of gravity is negative (points down).Velocity:(Initial velocity) + [ (acceleration) x (time) ]Positive velocity = moving upNegative velocity = moving down
Velocity of the x axis (how fast it's moving to the side) remains constant, so it equals whatever the x axis velocity is.
If you double a car's velocity, its velocity will also double. This means that the car will be moving twice as fast as it was previously.
the answer to this question can be found using the following simple equation:Vf = 9.8t + ViVf = Velocity Final (m/s)Vi = Velocity Initial (m/s)t = Time (s)For your specific problem, providing the object wasn't moving at the start of the 4 second period, the answer is 39.2 meters per second.
That's going to depend on the directions of each of the two initial velocities. It's also going to depend on who measured the initial velocities, where he was standing, how he was moving, and with respect to what else, etc.
The equation which covers this is s = ut + at2/2 where s is distance (ie displacement), u is initial velocity, t is time and a is the acceleration. This is a parabola with an initial (t=0) slope equal to u. The above equation comes from simple integration of the velocity versus time equation v=u+at, using an origin for distance s=0 at t=0.
simple harmonic motion (SHM) the two summits of motion are an example