When velocity of body is variable, then

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2.Motion in Straight Line

easy

When the velocity of body is variable, then

Its speed may be constant

Its acceleration may be constant

Its average acceleration may be constant

All of these

Solution

(d)

If velocity is changing they may change in magnitude or direction or both.

$(i)$ So, if velocity is changing in direction only the magnitude is constant so speed is constant.

$(ii)$ If only direction of velocity is changing and magnitude is constant then acceleration will also be constant in magnitude (in case of uniform circular motion).

$(iii)$ Average acceleration may be constant. $a_{ av }=\frac{v_2-v_1}{t_2-t_1}$

Standard 11

Physics

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medium

When the velocity of body is variable, then

Solution

Similar Questions

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