08. A jet plane starts from rest with an acceleration of 3ms-2 and makes a run for 35s before taking off. What is the minimum length of the runway and what is the velocity of the jet at take off?
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pr sida usko tapaka dete h na xD
bye going ..
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A jet plane starts from rest with an acceleration of 3ms-2 and makes a run for 35s before taking off. What is the minimum length of the runway and what is the velocity of the jet at take off?
sorry siddhart ji
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Let's start.
acceleration : 3units
time : 35s
initial velocity : 0units
by using 2nd equation of motion,
so
distance : 1 by 2 × at ^ 2 + ut ( because u : 0 )
1by2 × 3 × 35 × 35
0.5 × 3 × 1225
ans : 1837.5 metere si 1.8375 km.
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