Request a call back

Derive an expression for displacement in the last or nth second
Asked by Paitboy23 | 26 Jun, 2019, 05:44: AM
Let u be the initial velocity and a is acceleration.

--------------------------------------------------------------------------------------------------------------
To get velecity V after T seconds we use the formula, V = U+A×T , where A is acceleration
----------------------------------------------------------------------------------------------------------------

Hence velocity after (n-1) seconds = u+(n-1)×a .........................(1)

------------------------------------------------------------------------------------------------------------
To get displacement S after T seconds, we use the formula,  S = U×T + (1/2)×A×T2 ,
where U is initial velocity and A is acceleration
------------------------------------------------------------------------------------------------------------

Hence displacement Sn at nth or last second is obtained by using the intial velocity from eqn.(1) and it is given by,

Sn = u+(n-1)×a +(1/2)×a×1 = u+a×[ n- (1/2) ]
Answered by Thiyagarajan K | 26 Jun, 2019, 11:06: AM
CBSE 11-science - Physics
Asked by rustampathan | 25 Feb, 2024, 06:39: PM
CBSE 11-science - Physics
Asked by hjha9709 | 25 Feb, 2024, 12:13: PM
CBSE 11-science - Physics
Asked by corggn16 | 11 Feb, 2024, 01:22: PM
CBSE 11-science - Physics
Asked by gipaalsy | 08 Feb, 2024, 05:41: AM
CBSE 11-science - Physics
Asked by sonawaneom09 | 07 Feb, 2024, 10:13: AM