Not sure if you are saying the acceleration is positive or negative?
The equation you would use would be v=u+at, where v=final velocity u=initial velocity a=acceleration t=time. Using this if the acceleration is 2.51m/s^2:
v=2.98+(2.51*1.6)
v=6.996m/s
If the acceleration is -2.51 m/s^2:
v=2.98+(2.51*1.6)
v=-1.036m/s
Answer:
n = 223 revolutions
Explanation:
It is given that,
The angular acceleration of a helicopter blade,
Initial speed of the helicopter blade,
The final speed of the blade,
We need to find the number of revolutions. Firstly we will find the angle turned by the blade. Let the angle is . So,
Let there are n number of revolutions made by the blade. So,
or
n = 223 rev
So, there are 223 revolutions.
Yes, by golly. The car is accelerating. Changing direction is one form of acceleration, even if the speed doesn't change.
Answer:
Density = 1.14 kg/mm³
Explanation:
Given the following data;
Volume = 2.10 cm³ to mm = 2.10 * 10 = 21 mm³
Mass = 23.94kg
To find the density;
Density can be defined as mass all over the volume of an object.
Simply stated, density is mass per unit volume of an object.
Mathematically, density is given by the equation;
Substituting into the equation, we have;
Density = 1.14 kg/mm³