A car of mass 18Kg is moving with a constant velocity 40Km/h . Find the net force on it.
Answers
Given :
- Mass of car = 18kg
- Velocity =40km/hr
To find :
- Net force acting on it .
Theory :
Force : By Newton second law of motion
F = kma [ where k us a constant ]
Second law of motion by Newton give the magnitude of force .
• Force is a vector quantity.
Types if forces
1) Gravitational force
2) Electromagnetic force
3) Nuclear force
4) Weak force
Solution :
We have to find net force acting on the car
The car is moving with a constant speed.
Therefore, there is no acceleration.
So, the only force working on the car is the Normal Force.i.e N = mg
Force acting on the car
= mg
= 18× 9.8 [ g= 9.8 m/s²]
= 176.4 N
.
Hence, 176.4 N acting on the car✔✔
Answer:
Given :
Mass of car = 18kg
Velocity =40km/hr
To find :
Net force acting on it .
Theory :
Force : By Newton second law of motion
\sf\:Force\propto\dfrac{Change\:in\:Momentum}{Time\:Taken}Force∝
TimeTaken
ChangeinMomentum
F = kma [ where k us a constant ]
Second law of motion by Newton give the magnitude of force .
• Force is a vector quantity.
Types if forces
1) Gravitational force
2) Electromagnetic force
3) Nuclear force
4) Weak force
Solution :
We have to find net force acting on the car
The car is moving with a constant speed.
Therefore, there is no acceleration.
So, the only force working on the car is the Normal Force.i.e N = mg
Force acting on the car
= mg
= 18× 9.8 [ g= 9.8 m/s²]
= 176.4 N
.
Hence, 176.4 N acting on the car✔✔