Given parameters:
Acceleration of the car = 1.6m/s
Initial speed = 80km/hr
Final speed = 110km/hr
Solution:
Time taken to achieve this speed = ?
Solution:
Acceleration is the rate of change of velocity with the time taken.
Mathematically;
a = 
where a is the acceleration
V is the final velocity
U is the initial velocity
T is the time taken
Now make the unknown time the subject of the expression;
aT = V - U
T = 
Convert the given acceleration to km/hr;
1.6m/s = 1.6 x 
x 
x 
= 5.76km/hr
Input the parameters and solve;
T = 
= 5.2hrs
The time taken is 5.2hrs
Give me some answer choices and i will be happy to help
So the equation used in this problem is ΔX=V0*T+1/2AT^2 the X is the distance, v0 is initial velocity, T is time, and a is acceleration. So when we plug these values it we get: 108= 0•T+1/2•3•T^2,the 0•t disappears, and the 1/2•3 gets us 1.5, so we have 108=1.5T^2, then we divide 108 by 1.5 which gets us 72=t^2, and we then take the square root and get 8.49=T so the answer is 8.49 seconds.
40kg
Explanation:
Given parameters:
Kinetic energy = 500J
Velocity = 5m/s
Unknown:
Mass of the object = ?
Solution:
Kinetic energy is the energy due to motion of a body. It is expressed as:
K.E = 
mv²
m is the mass of the body
v is the velocity
To find the mass, make it the subject of the expression:
m = ![\frac{2 K.E}{v[tex]^{2}](https://tex.z-dn.net/?f=%5Cfrac%7B2%20K.E%7D%7Bv%5Btex%5D%5E%7B2%7D)
}[/tex]
m = ![\frac{2 x 500}{5[tex]^{2}](https://tex.z-dn.net/?f=%5Cfrac%7B2%20x%20500%7D%7B5%5Btex%5D%5E%7B2%7D)
}[/tex] = 40kg
Learn more:
Kinetic energy brainly.com/question/6536722
#learnwithBrainly
So there is extra wait that pulls the boat to stop.
Can i get brainliest I need it
