5. An object experiences a constant acceleration for
20 s after starting from rest. If it travels a distance
X1 in the first 10 s and distance X2 in the remaining
10 s, then which of the following is true?
(1) X = 2X2
(2) X1 = X2
(3) X = 3X2
(4) X2=3X1
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Answers
Answered by
4
Answer:
Distance traveled in first 10 seconds
S1 = u t + 1/2 a t² = 0 t + 1/2 a 10² = 50 a
Total distance traveled in 20 seconds =
S = u t + 1/2 a t² = 0 t + 1/2 a 20² = 200 a
Distance traveled from 10s to 20s = S2 = 200 a - 50 a = 150 a
Answered by
2
Answer:
distance traveled in first 10 seconds
S1 = u t + 1/2 a t² = 0 t + 1/2 a 10² = 50 a
total distance traveled in 20 seconds =
S = u t + 1/2 a t² = 0 t + 1/2 a 20² = 200 a
Distance traveled from 10s to 20s = S2 = 200 a - 50 a = 150 a
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