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The cordinate of moving article at any time t aregiven by x=at3and ybt3 the speed of the particle at time t is given by |
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Answer» Answer: PHYSICS If vector a+b=vector C and a+b=c what is the ANGLE between A and B? A . 90 B . 45 C . 0 D . 60 Given : a+b=c and a+b=c So, c2=(a+b).(a+b) Or (a+b)2=a2+b2+2a.b Or a2+b2+2ab=a2+b2+2abcosθ So, cosθ=1 ⟹ θ=0o |
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