Answer:
The resultant displacement is the sum of displacement vectors
Explanation:
The vector sum of two or vectors is know as resultant .
The resultant displacement is the result of when displacement vectors are added.
If the vector quantities are same then the two vectors can be added.
The resultant velocity is obtained by adding two or more velocity vectors.
In displacement vector the position will change.
The direction traveled is the direction of the displacement vector .
The magnitude of the displacement vector is the distance from starting point to the ending point.
I think (C )
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Answer:
5.4kgm/s towards the hitter.
Explanation:
Given parameters:
Mass = 0.12kg
Velocity = 45m/s
Unknown:
Momentum of the baseball = ?
Solution:
To solve this problem, we must understand that the momentum of a body is the quantity of motion it possesses.
Momentum = mass x velocity
Now insert the parameters and solve;
Momentum = 0.12 x 45 = 5.4kgm/s towards the hitter.
Answer:
potential energy
Answer : During the winding of the spring of a clock, the kinetic energy gets converted into stored potential energy of the spring.
The work done is 400 J
Explanation:
The work done by you in pushing the box along the slope is given by
where
F is the magnitude of the force applied
d is the distance covered by the box along the slope
Here we have the following:
F = 200 N is the magnitude of the force applied
is the distance covered, where
h = 1 m is the vertical rise
is the slope of the plane
Substituting and solving, we find
Learn more about work:
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