Answer:
142.296 Nm.
Explanation:
Torque: This is the force that tend to cause a body to rotate or twist. The S.I unit of torque is Nm.
From the question,
T = F×r.................... Equation 1
Where T = Torque, F = Force, r = radius of the circle.
Note: F is the weight of the bicyclist.
Then,
F = W = mg............... Equation 2
Substitute equation 2 into equation 1
T = mgr................... Equation 3
Given: m = 88 kg, g = 9.8 m/s², r = 0.33/2 m
T = 88(9.8)(0.33)/2
T = 142.296 Nm.
There's no info about the cars starting off differently, so as far as we know they have been side by side all the way.
<span>So from the last telephone pole: </span>
<span>(a) and (b): the displacement of both cars is 65.5m
the average speed for both car is 65.5m/5.0s = 13.1m/s</span>
Answer:
Explanation:
Let us calculate the average velocity .
Average velocity = total distance / total time
Time taken to drive first 15 mi
= 15 / 60 = .25 h
Time taken to drive next 15 mi
= 15 / 30 = .5 h
Total time = .25 + .5 = .75 h
Total distance = 30 mi
average speed = 30 / .75
= 40 mi / h
So average speed is 40 mph which is less than given velocity of 45 mph .
Hence if she travels at 45 mph , she will take less time .
Answer:
We define a vector as an object with a length and a direction.With no length, the zero vector is not pointing in any particular direction, so it has an undefined direction.
Explanation:
Pls mark me brainliest :)
