Author Question: Which of the lines in the figure represents the normal to the surface at point P? a. 1 ... (Read 263 times)

Jipu 123 · **on:** Jul 28, 2018

Which of the lines in the figure represents the normal to the surface at point P?

a.
1

b.
2

c.
3

d.
4

e.
none of the above

Question 2

A car travels in a flat circle of radius R. At a certain instant the velocity of the car is 24 m/s west, and the total acceleration of the car is 2.5 m/s2 53 north of west. Which of the following is correct?
a. R = 0.29 km, and the car's speed is increasing.
b. R = 0.23 km, and the car's speed is decreasing.
c. R = 0.23 km, and the car's speed is increasing.
d. R = 0.29 km, and the car's speed is decreasing.
e. R = 0.29 km, and the car's speed is constant.