Question

a particle at rest starts with constant acceleration. Distance travelled by the body in first two seconds is S. Distance travelled in next two seconds is​

Answer 1

Explanation:

Data:

u = 0

a = constant

Solution:

we know that,

s = ut + 1/2 at²

• s = 1/2 a(2)²
• s = 2a
• a = s/2

distance travelled in 4 sec,

• s' = 1/2 at²
• s' = 1/2 (s/2) 4×4
• s' = 4s

distance travelled in last 2 seconds,

• d = s' - s
• d = 4s - s/2
• d = 7s/2