1. A body submerged in liquid is buoyed up by the force equal to the weight of displaced liquid: Archimedes' Principal of Buoyancy.
2. If an object such as a spring is elongated by a distance of x, then the restoring force f is exerted by the object proportionate to x: Hooke's Law of Elasticity.
3. Pressure, flow speed, and height can change the rate of flow: Bernoulli's Principal.
4. Total pressure of a mix of gasses in a container is equal to separate pressures serrate gasses would exert of one occupancy: Dalton's Law of Partial Pressures.
5. Heat flow is proportionate to the gradient of temperature difference: Fourier's Law of Heat Conduction.
Answer:
12 N
Explanation:
Given,
Mass ( m ) = 3 kg
Acceleration ( a ) = 4 m/s^2
To find : Force ( F ) = ?
Formula : -
F = ma
F
= 3 x 4
= 12 N
Therefore, the force acting on the object is 12 N.
C) An unbalanced force is acting on the car in the direction east