Question

Answer this question!

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Answer 1

AnswEr :-

• 32 metres.
• 1.06666667 m/s

Given :-

• A distance time graph.

To Find :-

• What will be the distance travelled by the object in 30 seconds ?
• What is the average speed of the object ?

SoluTion :-

• The distance travelled by the object in 30 seconds will be 32 metres.

• Average speed of the object will be :-

Total distance travelled/total time taken

→ 80 / 75

→ 1.07 m/s

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Note :-

Refer to the attachment.

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Answer 2

Now, here as per the provided question we have to answer these questions, let's begin :

(a) answer → So we are provided the information and we will have to make a graph of time and distance.

We have made here the distance-time graph which is shown in the attachment.

(b) answer → As for the provided information (data) 32m will be the answer is the time is given here 30 seconds.

(c) answer → Here, we are asked to find the average speed of the object, we the appropriate formula for finding average speed :

Formula used (Average Speed) :

$➠ \frac{ \: ᴛᴏᴛᴀʟ \: ᴅɪsᴛᴀɴᴄᴇ \: ᴄᴏᴠᴇʀᴇᴅ \: }{ᴛᴏᴛᴀʟ \: ᴛɪᴍᴇ \: ᴛᴀᴋᴇɴ \: }$

[ substituting the values as per formula ] :

$➠ \: \frac{80}{75}$

[ when it is reduced ] :

$➠ \: \frac{80}{75} = \frac{16}{15}$

[ When 16/15 is reduced ] :

$➠ \: \frac{16}{15} = 1.06666666667$

Therefore, when 1.066666666 is converter into form of approximately it will be 1.07m/s

Therefore, average speed of the object = 1.07m/s

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⭐ ADDITIONAL INFORMATION ⭐

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★ How to draw a bar graph in mathematics ?

For drawing the bar graph will have to apply some methods, the methods are as follows :

• First of all for drawing a bar graph we need a pencil and Ruler (Scale).

• After that we need to place it correctly.

• Then we should read the information / data provided.

• Then take a scale (measurement) as I have taken the scale of 16 in drawing the above bar graph.

• Then name the first and last point as anything as I have mentioned x axis and y axis (in the above given graph).

• Then plot the bar graph as per provided information.

★ Important things to be reminded during plot of bar graph.

Some important points that are to be noted when we are plotting a bar graph, the important points that are to be noted are as follows :

• The first and foremost thing we have to reminded 'never use pen, use pencil instead of pen'.

• Then the important thing that is to be noted is always place the bar graph correctly.

• Always use ruler for appropriate measurement. Do not make the bar graph with the rough measurement.

• Never use pen for writing the points even also when we are plotting the bar graph.