Question

A cyclist starts from rest with uniform acceleration.
If he covers 2.6 m in the 7th second, the uniform
acceleration in m/s2 is
(a) 0.3
67 0.4
(C) 0.5
(d) 0.6​

Answer 1

Answer:

0.5 soooooooo sorryyyyyyyy

Answer 2

Given:

Cyclist covers 2.6 m in the 7th second.

To Find:

The uniform acceleration in m/s2.

Solution:

To find the uniform acceleration we will follow the following steps:

As we know, acceleration and distance relation =

$s = u + \frac{1}{2} a(2n - 1)$

Here,

s= distance at 7th second in m.

a = uniform acceleration in m/s2

n= 7

Applying the formula in the above equation we get:

$2.6= 0 + \frac{1}{2} a(2 \times 7 - 1)$

$2.6 = \frac{13}{2} a$

$a = \frac{2.6 \times 2}{13} = 0.4m{s}^{ - 2}$

Henceforth, the uniform acceleration is 0.4ms-2.