Question

6. A car Xcovers a distance of 1 km in 3 min and
another car Y covers a distance of 40 m in 10 s.
Which car has a greater speed ?​

Answer 1

Answer

To compare the speed of x and y , x and y should be in the same unit.

$\boxed{\sf Speed = \frac{Distance}{time}}$

Speed of x $\sf = \frac{1 km}{3 min}$

$\sf = \frac{1000}{180} m/sec$

$\sf = \frac{100}{18}$

$\sf = \frac{50}{9}$

$\sf\purple{= 5.55 m/sec }$

Speed of y $\sf = \frac{40m}{10sec}$

$\sf\purple{= 4 m/s}$

So , 5.55 m/s > 4 m/s

$\boxed{\mathrm\red{Speed\: of \:Car \:x > Speed\: of\: Car\: y}}$

Hence, Car x had greater speed.