Physics Worksheet Newton’s 2nd Law – The Basics For each of the situations shown, determine the required information: (a) (b) 20.0 N 4.0 N 5.0 N 8.0 kg (c) 15.0 N 2.0 kg Fnet = 10.0 N [W] a = 5.0 ms-2 [W] (f) (g) 15.0 N 20.0 N 1.0 kg F1 5.0 N 50.0 N 0.1 kg Fnet = 0.01 N [E] a = 0.10 m/s2 [E] F2 = 3.99 N [W] 2.0 kg Fnet = 8.0 N [W] a = 4.0 ms-2 [W] 20.0 N 20.0 N 20.0 N 18.0 N 2.0 kg 4.0 N (j) 10 kg F2 1.0 kg Fnet = 16 N [E] a = 1.6 ms-2 [E] Fnet = 3.0 N [W] a = 3.0 m/s2 [W] F2 = 23 N [W] (l) (m) (n) (o) F1 5.0 N 20.0 N Fnet = 20 N [W] a = 2.0 m/s2 [W] F1 = - 15 N [E] (q) 7.0 N F2 20.0 N (v) F2 5.0 kg Fnet = 7.5 N [E] a = 1.5 m/s2 [E] F2 = - 4.5 N [W] F2 6.0 N 1.0 kg F2 10 kg Fnet = 5.0 N [E] a = 0.33 ms-2 [E] F2 = 15 N [W] (r) Fnet = 0.50 N [W] a = 0.50 m/s2 [W] F2 = 20.5 N [W] (s) Fnet = 5.0 N [W] a = 0.50 m/s2 [W] F2 = 11.0 N [W] (t) 200 N 500 N 100 N 180 N 100 kg uniform motion Fnet = ZERO a = ZERO F2 = 7.0 N [W] 3.0 N F2 15 kg 1.0 kg F2 5.0 kg 12.0 N Fnet = 2.0 N [E] a = 1.0 ms-2 [E] 80 kg Vi = 2.0 m/s [W] Vf = 2.0 m/s [W] Fnet = ZERO a = ZERO F2 = 50.0 N [W] (u) 4.0 N uniform motion Fnet = ZERO F1 = 60.0 N [E] a = ZERO (i) 10 kg F2 4.0 N F2 60.0 N Fnet = ZERO a = 0 m/s2 F2 = 20 N [W] 10 kg Fnet = 20 N [E] a = 2.0 m/s2 [E] F1 = 25 N [E] (p) F1 (e) uniform motion Fnet = ZERO F1 = 10.0 N [E] a = ZERO (h) 1.0 kg Fnet = ZERO a = ZERO vi = 6.0 m/s [E] vf = 6.0 ms-1 [E] (k) 10.0 N 3.0 kg Fnet = 16.0 N [E] a = 2.0 ms-2 [E] 15.0 N F1 (d) Vi = zero Vf = 1.0 ms-1 [E] Fnet = 20 N [E] a = 0.20 ms-2 [E] t = 5.00 s (w) F1 5.0 N 10 kg v = 17 m/s [E] Fnet = 17 N [E] F1 = 22 N [E] a = 1.7 m/s2 [E] t = 10.0 s 600 N 300 kg 60 kg Vi = 4.0 m/s [E] Vf = 2.7 ms-1 [E] Fnet = 100 N [W] a = 0.33 ms-2 [W] t = 4.0 s (x) 3.0 N 40 N F2 2.0 kg Fnet = 5.0 N [W] a = 2.5 ms-2 [W] F2 = 8.0 N [W] Vi = 10 m/s [W] Vf = zero Fnet = 60 N [E] a = 1 ms-2 [E] t = 10.0 s (y) 100 N F2 300 kg Fnet = 100 N [W] a = 0.33 m/s2 [W] F2 = 200 N [W]