Friend please help or Brother sister. Question no.3,4,5.
please............................
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3.
ratio of displacement to distance will be to or less than 1 as displacement can be zero but distance can never be zero... so displacement can be equals to distance or less than that
4.
displacement is directly proportional to t^2
Differentiate wrt to time
dS/dt = d(t^2)/dt
velocity(v) = 2t. {v=dS/dt}
dv/dt = d(2t)/dt
acceleration (a) = 2 (constt). {a = dv/dt}
so object moves with uniform acceleration
5.
as velocity is constt. wrt time
so body is not at rest
since change in velocity is acceleration which is not changing so body is also not accelerating so body is in uniform motion(1st)
ratio of displacement to distance will be to or less than 1 as displacement can be zero but distance can never be zero... so displacement can be equals to distance or less than that
4.
displacement is directly proportional to t^2
Differentiate wrt to time
dS/dt = d(t^2)/dt
velocity(v) = 2t. {v=dS/dt}
dv/dt = d(2t)/dt
acceleration (a) = 2 (constt). {a = dv/dt}
so object moves with uniform acceleration
5.
as velocity is constt. wrt time
so body is not at rest
since change in velocity is acceleration which is not changing so body is also not accelerating so body is in uniform motion(1st)
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