Aparticle moves with constant acceleration along a straight line starting from rest. the percentage increase in its displacement during the 4th second compared to its displacement in the 3rd second (1) 33 % . is (2) 40 % (4) 77 % / (3) 66 % a particle is thrown upward from groun

Option 2 is the correct answer.

Explanation:

We have equation of motion s = ut + 0.5at²

Here u = 0 m/s

So, s = 0.5at²

Distance traveled in first second = 0.5 x a x 1² = 0.5 a

Distance traveled in second second = 0.5 x a x 2² - 0.5 x a x 1²= 1.5 a

Distance traveled in third second = 0.5 x a x 3² - 0.5 x a x 2²= 2.5 a

Distance traveled in fourth second = 0.5 x a x 4² - 0.5 x a x 3²= 3.5 a

The percentage increase in its displacement during the 4th second compared to its displacement in the 3rd second

Option 2 is the correct answer.

we need answer choices

c.the charges if the proton and electron and gravity