On a hot day, the deck of a small ship reaches a temperature of 48
1 answer:
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Work:
F: force
ds: displacement
Assuming the work is constant:
d displacement
F: force
ds: displacement
Assuming the work is constant:
d displacement
Answer:
Δp = -2 p₀
Explanation:
The momentum is defined by
p = m v
In this case we write the initial and final momentum, we take as positive the direction towards the wall.
p₀ = m v
p_f = m (-v)
the negative sign is because the car is bouncing off the wall
the change of the moment is
Δp = p_f - p₀
Δp = - m v - m v
Δp = -2 mv
Δp = -2 p₀
we see that the change of moment is twice the moment, in the attachment we can see the vectors of these changes and the sign indicates the direction of the change at the moment
The speed of the object is the rate where it changes position relative to the frame of reference. The speed equates to a stipulated speed and motion direction of the item, and the further calculation can be defined as follows:
Given:
To find:
Find the eastward component=?
Solution:
When the angle is north-east, the angle is the east measured
Using formula:
So, the final answer is "45.3155 m/s".
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