What is the mass of the cart with a constant net force of 200N is exerted to accelerate from rest to a velocity of 400m/sin 10 s
Answers
1 d = vt Distance travelled by an object is equal to its velocity times the time. Note that this is ONLY valid when an object is moving at a uniform velocity. If the velocity is changing, then the object is accelerating and we cannot use this equation.
2 v = at Velocity is equal to acceleration times time. A uniformly accelerating object changes its speed by its acceleration each unit time interval, so the acceleration times the time is the CHANGE in velocity over that time. This is sometimes written as delta V = at to indicate change in velocity. If the object is accererating from or braking to a zero velocity, the delta becomes irrelevant.
3 d = 1/2at2 This equation relates the distance an object undergoing uniform acceleration (or deceleration) to or from zero velocity travels in a given time under a given acceleration