Question

A car starting from rest attains a velocity of 20 m/s in 5 second. Find the distance covered by the car

Answer 1

Answer:

To solve any equation related to the speed, distance, time equations, the best thing to do is follow the CESCU method.

Conversion - Convert the measures into their right form, for example if the distance is given in km, but the speed is in m/s, then we have to convert the km to m

Equation - You have to form the equation that is going to help us solve the question. In this case, it is Distance = Speed x Time.

Substitution - Substituting the values into the equation. For example, here it is written as speed and time. We have to substitute it with the values given in the question

Calculation - Now you have the equation as you completed the substitution. All you have to do now is calculate.

Unit - Something teachers reduce a whole mark for. Always remember to right the unit after you get the value of whatever you did.

Now onto the question,

We don't need to convert the values to any other unit since one is seconds and the other is m/s so if we get the value of distance, then we have to write it in terms of metres.

The equation to use here is Distance = Speed x Time

Now, substituting, it would be

Distance = 20 x 5 = 100

Now finally marking the unit. As I said above, here we should use the metre unit.

So the final answer is 100 m

Hope it Helps,

Byeeee