A car travels at 54 km/hr for first 20 secs , 36 km/hr for next 30 secs and finally 18 km/hr for next 10 secs. Find its average speed.

Question

A car travels at 54 km/hr for first 20 secs , 36 km/hr for next 30 secs and finally 18 km/hr for next 10 secs. Find its average speed.
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Solution 1

Sure, let's calculate the average speed step by step.

Step 1: Convert all speeds to m/s 1 km/hr = 5/18 m/s So, 54 km/hr = 54 * (5/18) = 15 m/s 36 km/hr = 36 * (5/18) = 10 m/s 18 km/hr = 18 * (5/18) = 5 m/s

Step 2: Calculate the distance covered at each speed Distance = Speed * Time So, for the fir Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study prob

Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solv

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