Question

(v).Which of the following has highest speed?
A) Distance =2 m , time=2 sec
B) Distance =5 m , time= 3 sec
C) Distance =10 m , time=4 sec
D) Distance =3 m, time=6 sec​

Answer 1

Answer ::

The highest speed is [ Option. c ].

Explanation ::

Formula used :-

$\dag \: \boxed{\sf{ \green{Speed = \dfrac{Distance}{Time}}}}$

Solution ::

A) Distance = 2m, Time = 2 secs

∴ Speed is,

$\sf{ \mapsto \: Speed = \dfrac{Distance}{Time}} \\ \\ \\ \sf{ \mapsto \: \dfrac{2}{2}} \\ \\ \\ \sf{ \mapsto \:\cancel{\dfrac{2}{2}}} \\ \\ \\ \bf{ \mapsto \: Speed = 1m/s}$

B) Distance = 5m, Time = 3 secs

∴ Speed is,

$\sf{ \mapsto \: Speed = \dfrac{Distance}{Time}} \\ \\ \\ \sf{ \mapsto \: \dfrac{5}{3}} \\ \\ \\ \sf{ \mapsto \:\cancel{\dfrac{5}{3}}} \\ \\ \\ \bf{ \mapsto \: Speed = 1.66m/s}$

C) Distance = 10m, Time = 4 secs

∴ Speed is,

$\sf{ \mapsto \: Speed = \dfrac{Distance}{Time}} \\ \\ \\ \sf{ \mapsto \: \dfrac{10}{4}} \\ \\ \\ \sf{ \mapsto \:\cancel{\dfrac{10}{4}}} \\ \\ \\ \bf{ \mapsto \: Speed = 2.5m/s}$

D) Distance = 3m, Time = 6 secs

∴ Speed is,

$\sf{ \mapsto \: Speed = \dfrac{Distance}{Time}} \\ \\ \\ \sf{ \mapsto \: \dfrac{3}{6}} \\ \\ \\ \sf{ \mapsto \:\cancel{\dfrac{3}{6}}} \\ \\ \\ \bf{ \mapsto \: Speed = 0.5m/s}$

ACCORDING THE QUESTION,

The highest speed is [ Option. c ].