Question

hi friends ❣️❤️❣️

answer it ❣️


1. State Newton's second law of motion write its mathematical expression.

2. A truck starts from rest and Rolls on down a hill with a constant acceleration. It travels a distance of 400 metre in 20 seconds. Find its acceleration. find the force acting on it if its mass is 7000 kg.


don't spam ❣️❤️❣️​

Answer 1

the magnitudee of force is directly proportional to the rate of change of momentum

f=ma

Answer 2

Answer:

Hey ❤

Ans.2. Given,

u=0

s=400 m

t=20 sec

a= ?

Equation of motion,

s= ut+1/2at*2

400=0+1/2×a×20×20

400= 200a

a= 2

acceleration a = 2 m/s*2

According to question,

Force= f

mass= 7000kg (given)

a= 2 m/s*2

so,

F= ma

= 7000 × 2

= 14000 Newton

Hope its help u ❤

2. Easy Hain yrrr kr lena