Short Notes Section- A, Que. 15 and 16, Marks: 6 Write the short notes focusing on the questions: (any two) Positive Effects of Love 1) What will be the immediate result of love? 2) What will be the feelings one will have after in love? 3) How is his/her personality changed? 4) What love changes to a loving person's face?
full answer
Answers
Explanation:
Question:
Calculate the acceleration of a bus traveling with a velocity of 15 m/s which then slows down to attain a velocity of 7 m/s in 2 s.
Answer:
Acceleration of a bus is -4 m/s².
Explanation:
Given that:
Initial velocity (u) = 15 m/s
Final velocity (v) = 7 m/s
Time taken (t) = 2 s
To Find:
Acceleration (a)?
Solution:
Using first equation of motion ::
We know that,
⧪ \boxed{\bf{\purple{v = u + at}}}
v=u+at
⧪
Where,
v denotes final velocity
u denotes initial velocity
a denotes acceleration
t denotes time taken
According to the question by using the formula we get,
➼ \sf 7 = 15 + (a\:\times\:2)7=15+(a×2)
➼ \sf 7 - 15 = 2a7−15=2a
➼ \sf 2a = -82a=−8
➼ \sf a = {\cancel{\dfrac{-8}{2}}}a=
2
−8
➼ \bf\pink{a = -4\:m/s^2}a=−4m/s
2
∴ Acceleration of a bus is -4 m/s².
Learn More:
\clubsuit♣ Three equations of motion :
v = u + at ㅤㅤㅤㅤㅤ[Used above]
s = ut + ½ at²
v² = u² + 2as
\clubsuit♣ Some important definitions :
Acceleration
Acceleration is the process where velocity changes. Since, velocity is the speed and it has some direction. So, change in velocity is considered as acceleration.
Initial velocity
Initial velocity is the velocity of the object before the effect of acceleration.
Final velocity
After the effect of acceleration, velocity of the object changes. The new velocity gained by the object is known as final velocity.
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ANSWER
1) What will be the immediate result of love?
- The immediate result of love coming in relationship
2) What will be the feelings one will have after in love?
- Felling of care and respect for each other
3) How is his/her personality changed?
- We know that everything is possible in love and war . If any person fall in love he tried to improve his personality for who's he or she love.
4 ) What love changes to a loving person's face?
- True love changes to a loving person's face