Answer:
t = 6.09 seconds
Explanation:
Given that,
Speed, v = 44.1 cm/s
Distance, d = 269 cm
We need to find the time interval of the marble. Speed is distance per unit time.
Hence, the time interval of the marble is 6.09 seconds.
Which sentence states Newton’s third law?
2 answers:
Explanation:
Sir Issac newton has given three laws of motion i.e.
1. First law of motion
2. Second law of motion
3. Third law of motion
The third law of motion states that, "If two objects collide, each object exerts a force equal to and in the opposite direction of the other". The applied force is called action force and its effect on another object is called reaction force. These two forces are applied on different objects. Mathematically, it is equal to :
is the force on object 1 due to object 2
is the force on object 2 due to object 1
So, the correct option is (b) "If two objects collide, each object exerts a force equal to and in the opposite direction of the other".
You might be interested in
Answer:
<em>The period of the motion will still be equal to T.</em>
<em></em>
Explanation:
for a system with mass = M
attached to a massless spring.
If the system is set in motion with an amplitude (distance from equilibrium position) A
and has period T
The equation for the period T is given as
where k is the spring constant
If the amplitude is doubled, the distance from equilibrium position to the displacement is doubled.
Increasing the amplitude also increases the restoring force. An increase in the restoring force means the mass is now accelerated to cover more distance in the same period, so the restoring force cancels the effect of the increase in amplitude. Hence, <em>increasing the amplitude has no effect on the period of the mass and spring system.</em>