Question

A car starts from rest with a uniform acceleration of 4 ms^2. The distance travelled
in metres at the ends of ls, 2s, 3s and 4s are respectively,

(a) 4, 8, 16, 32
(b) 2, 8, 18, 32
(c) 2, 6, 10, 14
(d) 4, 16, 32, 64

Answer 1

Answer:

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Answer 2

Answer:

C 2,6,10,14

Explanation:

Given, u = 0

a = 4

[S(nth)sec = u + a/2 (2n-1)]

when t = 1sec

Sn = 0 + 4/2 (2×1-1)

Sn = 2

t= 2

Sn = 0 + 2(4-1)

Sn = 6

t= 3

Sn = 0 + 2(6-1) = 10

t=4

Sn = 0 + 2(8-1) = 14