Answer: The correct answer is option (D).
Explanation:
The area under the line is 10 meters that is displacement which means that area enclosed by the right angled triangle is 10 unit squares.
So, the it can be written as:



Hence the, the correct answer is option (D).
Answer: Either a change in mass or velocity or both.
Explanation: Since the equation for momentum is p (momentum) = m (mass)* v (velocity), if the mass or velocity (or both) of the object is changed, the momentum will change.
Lifting weights, did this yesterday :))
Answer:
Correct option : (c) period.
Explanation:
The time that is required for a vibrating object to complete one full cycle is called the time period. If f is the frequency of a wave, then the relation between the frequency and the time period is given by :

These are the characteristics of a wave. Some other characteristics are wavelength, amplitude, intensity etc. So, the correct option is (c) "period".
Acceleration times mass equals speed