1.

The body first level 30 metre into second and thus travel 40 metres in 5 seconds. What is the average speed

Answer»

\checkmark Given:

A body travels 30 METRE in 2 second and then travels 40 metre in 5

SECONDS

\checkmark To FIND:

The average speed

\checkmark Solution:

We know that,

\red{\bigstar \ \boxed{\rm s=\dfrac{d}{t}}}

Here,

  • s = speed
  • d = distance
  • t = time

According to the question,

We are asked to find the average speed

So, we must find "s"

Given that,

A body travels 30 metre in 2 second and then travels 40 metre in 5

seconds

Hence,

  • d = 30 + 40 = 70 m
  • t = 2 + 5 = 7 s

Substituting the VALUES,

We get,

\blue{\rm \implies s=\dfrac{70}{7} \ m/s}

\pink{\rm \implies s=<klux>10</klux> \ m/s}

Therefore,

The average speed = 10 m/s


Discussion

No Comment Found

Related InterviewSolutions