Question

a. In uniform acceleration, acceleration is CONSTANT. Is velocity constant too? If yes, explain. b. Is...

a. In uniform acceleration, acceleration is CONSTANT. Is velocity constant too? If yes, explain.
b. Is velocity more than just speed?
c. In a circular motion, what happens if the radius and speed is doubled? halved?

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Answer #1

a)when acceleration is constant that means velocity is increasing in a uniform rate .acceleration is rate change of velocity ,so that rate of change is constant that means velocity is changing at a constant rate.

b) velocity is a vector having magnitude of speed and as well as direction where as speed is just a scalar quantity velocity has magnitude as well as direction .

c)in circular motion there is a constant acceleration ,force towards radius (mv^2)/r.if speed and radius is doubled,force becomes (m*(2v)^2)/2r=2(m(v^2))/r force and acceleration increases by two times.

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