Question 147: Motion in 1D

Question

A particle starts its motion from rest under the action of a constant force. If the distance covered in first 10 seconds is S1 and that covered in the first 20 seconds is S2, then

Accepted Answer

Given u = 0.
S
1
= $${1 \over 2} 	imes a 	imes t_1^2$$
and S
2
= $${1 \over 2} 	imes a 	imes t_2^2$$
$${{{S_1}} \over {{S_2}}} = {\left( {{{{t_1}} \over {{t_2}}}} ight)^2}$$ = $${\left( {{{10} \over {20}}} ight)^2}$$ = $${1 \over 4}$$
S
2
= 4S
1

Answer

S2 = 3S1

Answer

S2 = 4S1

Answer

S2 = S1

Answer

S2 = 2S1

Motion in 1D

A particle starts its motion from rest under the action of a constant force. If the distance covered in first 10 seconds is S1 and that covered in the first 20 seconds is S2, then

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