Question

16. A train moving with uniform speed covers a distance of 120 m in 3 seconds calculate the speed of the train and the time it will take to cover 280 m​

Answer 1

$\large{\sf{\underline{\underline{Given : -}}}}$

• Distance of a moving train = 120m
• Time taken in the moving train = 3 seconds

$\large{\sf{\underline{\underline{To\:Find : -}}}}$

• Speed of a train = ?
• Time of a train = ?

$\large{\sf{\underline{\underline{Solution}}}}$

Given,

• D = 120m
• T = 3 seconds

As we know that

${\qquad}{\large{\underline{\boxed{\red {\sf{speed = \frac{distance}{time}}}}}}}$

Now put the values

$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \sf \: \: :\implies \: \cancel\frac{120}{3} \\ \\ \sf : \implies 40 \: \frac{m}{sec}$

given,

• D = 280m
• S = 40m/s

we know that

${\qquad} {\sf{\underline{\boxed{\purple{\sf{time = \frac{distance}{speed}}}}}}}$

Now put the values

$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \sf : \implies \cancel\frac{280}{40} \\ \\ : \implies{\underline{\boxed{\red{ \frak{time = 8 sec}}}}}{\bigstar}$

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