Which of the lines in the figure represents the normal to the ...

[Jipu 123]

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.

[raili21]

Answer to Question 1

c

Answer to Question 2

a

[Jipu 123]

Thanks for the timely response, appreciate it

[bdobbins]

Excellent