What does Newton's 2nd Law explain?
1 answer:
Answer:
C. Why you must push harder to move a car farther.
Explanation:
Newton's Second Law of Motion states that the acceleration of a physical object is directly proportional to the net force acting on the physical object and inversely proportional to its mass.
Mathematically, it is given by the formula;
Hence, Newton's 2nd Law explains why you must push harder to move a car farther because of its mass. Thus, it is important to increase the force that the engine provides and decrease the mass of the car.
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Answer:
So the mass of the second object M will be 1.951 kg
Explanation:
We have given mass of the first object and its velocity
Mass of the second object it is at rest so its velocity
From conservation of momentum we know that
Initial momentum = final momentum
So
M = 1.951 kg
Answer:
The particle path will follow
(d) a circular path
Explanation:
When a charged particle having charge of magnitude '' enters into a magnetic field such that its velocity vector '
' is perpendicular to the direction of the magnetic field '
', then it will experience a force, called Lorentz force (
), given by
As shown in the figure, the magnetic field is directed perpendicular to the plane and towards the plane (as shown by the circle and 'X'-sign) and the velocity vector is from left to right on the plane.
According to the property of cross-product, the Lorentz force () acting on the particle will be perpendicular to the instantaneous position of the particle, making the path of the particle to be a circular path,as shown in the figure.
