Download presentation

Presentation is loading. Please wait.

Published byBernadette Dennis Modified over 2 years ago

1
Starting from rest, how high can you raise a 10.0 kg object in 3.50 s if you pull upward with a force of 115 N ?

2
SOLUTION : Starting from rest, how high can you raise a 10.0 kg object in 3.50 s if you pull upward with a force of 115 N ? CH2 W FAFA F A - W = F NET Find a:Find W:Find d: d = ? v i = 0 t = 3.5 a = ____ Find NET: F NET = maF A - W = F NET F = ma d = v i t + 1 / 2 at 2 = 10(9.8) = 98.0 N 115 - 98 = F NET = 17.0 N 17 = 10 a a = 1.70 m/s 2 1.70 =.5(1.7)(3.5) 2 = 10.4 m

4
W FfFf W - F f = F NET Find F f :Find W:Find NET: F NET = maW - F f = F NET F = ma = 60(9.8) = 588 N 588 - F f = 150 = 150 N = 60 (2.5) F f = 438 N

5
W T W = 2T Find W:Find T: W = 2 TF = ma = 30(9.8) = 294 N T = 147 N 294 = 2T T

6
W W = F N F f = F A Find W: Find : F f = F N F = ma = 84.6(9.8) = 829 N =.148 123 = (829) FNFN FAFA FfFf

7
W FNFN W = F N F A - F f = F NET Find F f : F f = F N =.22(9.8m) = 2.16m F A - F f = F NET FAFA FfFf 122 - 2.16m = 8m 122 = 10.2m m = 12.0 kg

8
W W = F f F N = F A Find W:Find F A : Same as F N F f = F N F = ma = 2(9.8) = 19.6 N 19.6 =.255F N FfFf FAFA FNFN F N = 76.9 N PHYSICS

9
W W = F N F A - F f = F NET Find m:Find F f : F f = F N F = ma 38= m(9.8) = 3.88 kg = 6.65 N =.175(38) FNFN FAFA FfFf Find NET: F A - F f = F NET 25 - 6.65 = F NET = 18.4 N Find a: F = ma 18.4 = 3.88a = 4.74 m/s 2 CH2 Find v f : t = 7 v i = 2.45 v f = ? a = ____ 4.74 v f - v i a = ____ t v f - 2.45 4.74 = _______ 7 = 35.6 m/s

10
W W = F N F f = F A Find W: Find : F f = F N F = ma = 25(9.8) = 245 N =.184 45 = (245) FNFN FAFA FfFf

11
W T T - W = F NET Find T:Find W:Find NET: F NET = maT - W = F NET F = ma =.5(9.8) = 4.9 N T - 4.9 =.625 =.625 N =.5 (1.25) T = 5.53 N

12
W FNFN W = F N F A - F f = F NET Find NET: = 1.94(2.25) = 4.37 N F A - F f = F NET FAFA FfFf 7.63 = (19) =.402 Find m: F = ma 19 = m(9.8) = 1.94 kg Find F f : F f = F N 12 - F f = 4.37 = 7.63 N F = ma Find :

Similar presentations

Presentation is loading. Please wait....

OK

Newton’s Second Law of Motion

Newton’s Second Law of Motion

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Poster template free download ppt on pollution Ppt on reflection in c# Ppt on single phase and three phase dual converter Free ppt on mobile number portability act Ppt on limits and derivatives problems Ppt on classical economics school Simple ppt on global warming Download ppt on cell organelles and their functions Ppt on group 17 elements Ppt on video teleconferencing centers