An accelerometer-a device to measure acceleration-can be as simple as a small pendulum. suppose you are flying a small plane in a straight horizontal line and your accelerometer hangs 14.00° behind the vertical, opposite the direction of motion. what is your acceleration?

g tan(14°) = 2.44 m/s^2

Explanation:

If the pendulum is static, the tension will give us the magnitude of the acceleration of the plane.

Let T the tension of the pendulum and a the acceleration of the plane

The y-axis equation states that:

T cos(14) = mg

Similarly, for the x-axis

T sin(14) = ma

Dividing these equations we get

sin(14) /cos(15) = tan(15) = a/g

And solving for a:

a = g * tan(15)

the independent variable, or the one that is intentionally manipulated is the speed.

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.