. यदि एक कार 40 किमी प्रति घण्टा की चाल से त्वरित (accelerate)
होती है तथा 100 किमी/घण्टे की गति को 6 सेकण्ड में प्राप्त करती है, तो
उसका त्वरण ज्ञात कीजिए।
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Hii here is your solution....
Given=Initial velocity(u)=40 km/hrs
Final velocity(v)=100km/hrs
Time=6sec
Acceleration=?
Sol=First we will convert km/hrs to m/sec
= u=200/18 m/sec
= v=500/18 m/sec
Now,we will apply newton's first law of motion
i.e. v=u+at
= 500/18=200/18+6a
= 500/18-200/18=6a
=300/18=6a
= a=300/18×1/6
= a=50/18
Therefore,acceleration is 50/18 m/sec
hope it will be helpful for you.......
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