90% of Post UTME Exam Questions come from Past Ones
Failed JAMB? Don't Worry, you can gain admission into 200L in any University of your Choice, even with low JAMB Score

Two bodies have masses in the ratio 3:1. They experience forces which impart to them...

Two bodies have masses in the ratio 3:1. They experience forces which impart to them acceleration in the ratio 2:9 respectively. Find the ratio of forces the masses experienced.

  • A. 1 : 4
  • B. 2 : 1
  • C. 2 : 3
  • D. 2 : 5
Correct Answer: Option C
Explanation

Let the forces be F1, and F2.
F1 = m1 a1 = 3 x 2 = 6N

F2 = m2 a2 = 1 x 9 = 9N

F1 : F2 = 6:9 = 2:3

Thus ratio of forces is 2: 3


Report an Error Ask A Question Download App

Contributions (73)

Beloved Dom
6 years ago
Deducing d mathematical representation of Newton's 2nd law of motion,we have F=MA.Frm our quesn

M1=2,A1=3,M2=9,A2=1

Relate them 2gether:

2*3:9*1

=6:9(divide through using their possible smallest integers i.e3 ofcourse)

=2:3 ans.....c
nworu emeka
5 years ago
Anoda method is,2:1and3:9=3/2*1/9,cross divide,which is 9 divided 3, u get 3,and 2 divided 1 u get 2,which is 2:3,as answer.
Evetic22
5 years ago
Emekks tanks alot nd many of u guys 4 ur explalation ok am pleasured by it
ARRuZzABRYLE
3 years ago
we know that f=ma and we are having 2 masses and 2 accelerarions....xo we jst say f1 * m1 = f2 * m2 which is equal "6=9"...then divide both sides with 3 den we have 2:3
Superchijekwu
6 years ago
I love this question
wendy2cute
6 years ago
datz easy
Santosky
1 year ago
Nice one guyz
Lawal Olanrewaju
6 years ago
I follow u emekks
Shozlee
5 years ago
I love this
Tosihnodorcas
5 years ago
D ans is 2:3

f=ma

f1=m1a1=3*2=6

f2=m2a2=1*9=9

f1:f2=6:9=2:3
Ndukechrist
3 years ago
f1=m1*a1=3*2=6, f2=m2*a2=1*9=9, =6:9, divide through be 3 (smallest integer) ansa=2:3. ansa x c
krypton435
2 years ago
2:3
krypton435
2 years ago
i belive it has already been explained
eddino
6 years ago
Nice work guys
Esuo25
6 years ago
i'm proud of my gud students

Quick Questions

Post your Contribution

Please don't post or ask to join a "Group" or "Whatsapp Group" as a comment. It will be deleted. To join or start a group, please click here

 
Get Project Topics & Materials
Post UTME Past Questions 2019/2020
Sell Past Questions on Myschool