Batteries and solar cells supply direct current.
There are several information's of immense importance that are already given in the question. Based on those information's the answer to the question can be very easily determined.
Initial velocity of the object (V1) = 65 m/s
Final velocity of the object (V2) = 98 m/s
Time taken by the object = 12 seconds
Then
Acceleration of the object = (V2 - V1)/Time taken
= (98 - 65)/12 m/s^2
= 33/12 m/s^2
= 2 9/12 m/s^2
= 2.75 m/s^2
So the acceleration of the object can be written as 2 9/12 meter per square second or 2.75 meter per square second.
Answer:
Explanation:
As we know that the tension in two strings are
now we have
so we can say
also we have
now divide two equations
Explanation:
First, we need to calculate the constant force, that is, the ratio between the applied force and the rubber stretch due to the application of the force:
Now, we can know how far will an 18N force stretch the rubber. From (1):
The work done by the external force on the rubber is equal to its elastic potential energy:
A) 6000J
the formula will fit in, once you know the formula you are good to answer.
<span>k.e.=1/2 mv^2
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