A bicycle is ridden along a horizontal road with a driving force of 400, n,400n. its speed is constant at 12, m, slash, s,12m/s.
1 answer:
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Answer:
Weight of air per unit area is pressure due to atmosphere. So here correct answer is Weight
Explanation:
As we know that air pressure is given by
now we know that force here due to air is due to the weight of the air
so here in order to calculate the weight we will have
here we know that
Ah = volume of air above the point where pressure is to be calculated
now from above formula we have
so here we can say that pressure is due to weight of air
Answer:
Explanation:
Energy store in the compressed trampoline = potential energy of at the maximum height ignoring friction
energy stored in the trampoline = where k is spring constant and x is the distance compressed = 0.5 × 2900 × 0.38² = 209.38 J
209.38 J = 25 × 9.8 × h
h maximum height attain = 209.38 J / ( 25 × 9.8) = 0.855 m