Two objects A and B are thrown upwards simultaneously with the same speed. The mass of A is greater than the mass of B.Suppose the air exerts a constant and equal force of resistance on the two bodies, thena) A will go higher than Bb) B will go higher than Ac) Both will reach the same heightd) none of these
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B object will go high because it is heavy and have much weight to with stand the pressures
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let mass of A = Ma
mass of B = Mb
and constant resistance = r m/s²
according to question,
Ma > Mb
and Ua = Ub { speed of A and B}
motion upward so, air resistance applied downward . so, net acceleration = (r + g) m/s²
so, Ha = Ua²/2(a + g)
Hb = Ub²/2(a + g)
here you see Ha = Hb
here you remember that height of particle is independent of their masses
so, option (c) is correct
mass of B = Mb
and constant resistance = r m/s²
according to question,
Ma > Mb
and Ua = Ub { speed of A and B}
motion upward so, air resistance applied downward . so, net acceleration = (r + g) m/s²
so, Ha = Ua²/2(a + g)
Hb = Ub²/2(a + g)
here you see Ha = Hb
here you remember that height of particle is independent of their masses
so, option (c) is correct
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