Find the angular velocity of a clock's second hand and the linear speed and linear acceleration of a point on the second hand 1.96 cm from the rotation axis.

To find the angular velocity of the clock's second hand, we need to know the time it takes for the second hand to complete one full revolution. Let's assume that this time is T seconds.

The angular velocity (ω) is given by the formula:
ω = 2π / T

Now, to find the linear speed and linear acceleration of a point on the second hand, we can use the following formulas:

Linear speed (v) = ω * r
Linear acceleration (a) = ω^2 * r

where r is the distance of the point from the rotation axis, which in this case is given as 1.96 cm.

So, let's substitute the values into the formulas:

Angular velocity (ω) = 2π / T
Linear speed (v) = (2π / T) * 1.96 cm
Linear acceleration (a) = ((2π / T)^2) * 1.96 cm

To find the values of linear speed and linear acceleration, we need to know the time (T) it takes for the second hand to complete one full revolution. Without this information or assuming a value, we cannot calculate the specific values.