A body of mass 2kg acted on a body by a force travels 3m in Frist sec and further distance of 1m in next sec. The force acting on the body is
1) 1N. 2) 2N. 3)3N. 4)4N
Please! send with solution!
Dishita from grade 7
1) 1N. 2) 2N. 3)3N. 4)4N
Please! send with solution!
Dishita from grade 7
Answers & Comments
S = ut + at2/2
4 = 0x2 + a x 22/2 (As initial velocity (u) was 0)
4 = 4a/2
a = 8/4
Therefore a = 2
Force-mass-acceleration
F=2 X 2
F=4N.
Therefore answer is 4N.
Verified answer
Answer:
4) 4N
Explanation:
Apply second equation of motion
[tex]s = ut \: + \: \frac{1}{2} at {}^{2} [/tex]
Here s = 4, t = 2 and u = 0. So a = 2m/s^2.
F = ma => F = 2kg × 2m/s^2. = 4N. Therefore 4) 4N.