The same braking force does work on these objects to slow them down. The work done is equal to their change in kinetic energy:
FΔx = 0.5mv²
F = force, Δx = distance traveled, m = mass, v = speed
Isolate Δx:
Δx = 0.5mv²/F
Calculate Δx for each object.
Object 1: m = 4.0kg, v = 2.0m/s
Δx = 0.5(4.0)(2.0)²/F = 8/F
Object 2: m = 1.0kg, v = 4.0m/s
Δx = 0.5(1.0)(4.0)²/F = 8/F
The two objects travel the same distance before stopping.
Answer:
0.38296 m
1.02132 rad
Explanation:
Angular frequency is given by
Displacement is given by
Velocity is given by
The phase angle is 1.02132 rad
The amplitude is 0.38296 m
The equation is given by
The equation is
When gasoline burns in the engine, it is oxidised and energy is liberated.
Here the chemical energy of gasoline is converted into mechanical energy to move the vehicle.
The correct answer is: directional force
Explanation:
A vector quantity is a quantity which has both a magnitude and a direction.
A field is always associated with a force, which means that the field produces a force on an object located in the field. The force itself is a vector, since it has a magnitude and a direction.
Therefore, the magnetic field is a vector quantity since it is associated with a directional force.