A decrease in velocity is referred to as deceleration. If car is moving at 30 m/s and stop in 50 m .The value of deceleration is 11.56 ms−2.
<h3>How to calculate deceleration ?</h3>
While acceleration is motion in which an object's speed varies every second, deceleration is motion that causes an object to slow down.
We are aware that acceleration refers to an object's rate of increase in speed, and deceleration refers to an object's rate of decrease in speed. For instance, when we apply the brakes while driving, we benefit from the vehicle's ability to decelerate and slow down.
The Deceleration Formula is the final velocity minus the initial velocity, with a negative sign in the result because the velocity is decreasing, if starting velocity, final velocity, and time taken are given.
velocity of car = 30 m/s
car need to stop in 50m
Deceleration a = v^2 – u^2 / 2s
= 0^2 - 50^2 / 2*30
= 11.56
Deceleration of the care = 11.56 ms−2
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Answer:
Option (A) : Nuclear Fusion and Beta Decay (electron emission)
♥ Centripetal force formula ⇒ mv^2/r
♥ Let's solve:
⇒1200/200=v^2/25
⇒1200*25/200=v^2
⇒v^2=150
⇒v=SQRT(150)
⇒=12.2
Keep in mind anything right after the carrot sign is considered a "exponent" or "to the power of."
<span>♥ Maximum speed it can go is 12m/s.</span>
Answer:
Distance = 12 km
Displacement = 8.6 km
Explanation:
Given:
Chanice drives her scooter 7 kilometers North.
Chanice drives 5 kilometers east.
Let 'A' be initial position of Chanice, 'B' be the position when Chanice covered 7 km and 'C' be the final position.
Now, as per question:
AB = 7 km, BC = 5 km.
Therefore, total distance traveled by Chanice is equal to the sum of the distances AB and BC. So,
Total distance = AB + BC = 7 km + 5 km = 12 km
Now, displacement is the difference between the final position and initial position.
Final position is C and initial position is A. So, displacement is AC.
Therefore, displacement = AC
Now, using pythagoras theorem, we can find AC.
Therefore, her displacement is 8.6 km.
Answer:
554.265 N
Explanation:
Without moving it means it is static. Since we know that normal friction is given by N=mg where m is the mass and g is acceleration due to gravity.
The static friction will then be given by multiplying the normal reaction by the coefficient of static friction. Taking g as 9.81, m as 113 kg and 0.5 for coefficient of static friction then
Fs= 0.5*113*9.81=554.265 N