The focal point of a concave mirror is halfway along the radius, therefore the radius would be 2•16= 32 cm
Answer:

Explanation:
We have an uniformly accelerated motion, with a negative acceleration. Thus, we use the kinematic equations to calculate the distance will it take to bring the car to a stop:

The acceleration can be calculated using Newton's second law:

Recall that the maximum force of friction is defined as
. So, replacing this:

Now, we calculate the distance:

Answer:
0.113097335529 Nm
Explanation:
t = Time taken
u = Initial velocity
v = Final velocity
a = Acceleration
I = Moment of inertia = 0.3 kgm²

Torque is given by

The magnitude of torque is 0.113097335529 Nm
Voltage - An electromotive force or potential difference expressed in volts.
Current - A flow of electricity which results from the ordered directional movement of electrically charged particles.
Power = work / time --> time = work / power = 3600 J / 275 watts = 13.1 seconds.