Section 3: Answers 1-11

Hey, guys.
The big ideas in this section were about Newton's Laws.

1.
(a) 1.0 m/s ^ 2
(b) 0.5 m/s ^ 2.
(c) 4.0 kg.
(d) 2.0 N


2. (a) and (b). For m = 2.0 kg, FN = Fg = 20 N
(a) a= 6.0 m/s ^ 2
(b) a=12.0 m/s ^ 2
(c) For m = 1.0 kg, F N = F g = 10 N. a x = 12 m/s ^ 2.


3.
(a) a x = 4.0 m/s ^ 2
(b) a x = 10 m/s ^ 2


4.
(a) F net external = 2 m/s ^ 2
(b) F A B = 8 N
(c) F B A = 8 N


5.The Newton third law of motion forces are: (1) FRP and FPR, (2) FRH and FHR.



6.
(a) (F net external) x = 2 m/s ^ 2 = a
(b) T = 4 N


7. (a) F = 30 N
(b) F= 39N

8. (a) a = 20 m / s ^ 2
(b) 6.0 N
(c) 0.2 N
(d) 5.4 N

9.
(a) applied force = 1 N
(b) 4 Kg
(c) 5 N
(d) the slope increases, the intercept increases
(e) intercept changes

10.
(a)


(b) 4 N
(c) 11 m / s ^ 2

11.
(a)


(b) 2 N
(c) 11 m / s ^ 2