Acceleration of motorcycle= 1.23m/s^2
Step-by-step explanation:
We need to find the acceleration of motorcycle When its speed increases from 10km/hr to 50km/hr in 9 seconds
Given:
Initial speed= 10km/hr
Final speed= 50km/hr
Time = 9 seconds
Acceleration = ?
Formula: 
Solution:
We will first convert the speed from km/hr to m/s
Converting Initial speed 10km/hr into m/s
1 km = 1000 m
10 km = 10,000 m
and 1 hr = 3600 s
So, Initial speed = 10,000/3600 = 2.77 m/s
Converting Final speed 50km/hr into m/s
1 km = 1000 m
50 km = 50,000 m
and 1 hr = 3600 s
So, Initial speed = 50,000/3600 = 13.88 m/s
Now Using formula of acceleration:
So, Acceleration of motorcycle = 1.23m/s^2
Keywords: Acceleration, Change in speed
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25,688 sonygfkdjfjdjfjgj needed 20 lol
X=2
subtract 7 from both sides
Answer:
a. 21: 45
d. 63: 135
Step-by-step explanation:
Ratio or Relationship of two quantities is the result of comparing two quantities.
Such a comparison could be indicated as a reason, in four different ways, in this way:
1)a: b
2)a ÷ b
3)a/b
d)The reason for a is a b.
Equivalent ratios can be used to show the same relationship between two quantities. Remember that the word "equivalent" means the same.
Problem development
We observe what are the equivalent relationships 7:15 and conclude that they are the following:
a.To find the equivalent ratio, we divide the numerator and denominator by the same number , In this case we divide by 3:
21: 45 = 21/45 = 21÷3 /45÷3 = 7/15
d.To find the equivalent ratio, we divide the numerator and denominator by the same number , In this case we divide by 9:
63: 135= 63/135 = 63÷9 /135÷9= 7/15
