Answer: Image for option 4
Explanation:
The fourth option is correct because there are three forces acting on the block:
which is the <u>Friction force</u> and acts against the movement of the block
the <u>Normal Force</u>, which is perpendicular (normal) to the surface of the rough ramp
the Weight of the block, which is the force due gravity acceleration and has an <em>x-component</em> and an <em>y-component.</em>
Added because force increase as it experiences drag.
The distance covered by the car is 39.9 m
Explanation:
Since the car is slowing at constant rate, it means that its acceleration is constant, therefore we can solve the problem by using the following suvat equation:
where
s is the distance covered
u is the initial velocity
v is the final velocity
t is the time elapsed
For the car in this problem, we have
u = 19 m/s (initial velocity)
v = 0 (final velocity)
t = 4.2 s (time elapsed)
Therefore, the distance covered is
Learn more about accelerated motion:
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Explanation:
When neutral objects are placed in the vicinity of charged objects,they get attracted.
The isolated neutral object has positive charge and negative charge spread throughout it completely.
When a charged particle is brought,the opposite charges in the neutral object occupy the positions near to the charged particle and the like charges occupy the positions far from the charged particle.
This creates a dipole with some dipole moment.
This dipole attracts to the field of the charged particle.