According to Newton’s second law of motion, the acceleration of an object is inversely proportional to which quantity?
2 answers:
Explanation:
According the Newton's second law of motion, force applied on an object is directly proportional to its mass and acceleration.
Mathematically, the relation is as follows.
Force = mass × acceleration
or, Acceleration =
Thus, we can conclude that according to Newton’s second law of motion, the acceleration of an object is inversely proportional to the mass of object.
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Explanation:
A wave on a string is described is given by :
The linear density of the string is 5 g/m.
Where
x is in meters and t is in seconds
The general equation of a wave is given by :
(2) The speed of the wave in terms of tension is given by :
Also,
So,
T = 12.88 N
(3) The maximum displacement of a point on the string is equal to the amplitude of the wave. So, the maximum displacement is 2 cm.
(4) The maximum speed of a point on the string is given by :
v = 12.76 m/s
Hence, this is the required solution.
Answer:
The acceleration is and the distance covered is 97.17 m.
Explanation:
Given that,
Initial speed of an automobile, u = 60 km/hr = 16.67 m/s
Final speed of an automobile, v = 80 km/hr = 22.2 m/s
Time, t = 5 s
We need to find the acceleration of the car and the distance traveled in this 5 sec interval. Let a is the acceleration. Using the definition of acceleration as :
Let d is the distance covered. Using the third equation of motion to find it as follows :
So, the acceleration is and the distance covered is 97.17 m.