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natachalebrun2
08.09.2020 •
Physics
Adan skips 25 m South, then runs 100 m North, then walks 25 m Sout
What is her displacement?
Solved
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Ответ:
I think its 50 north.
Explanation:
25 south then 100 north makes it 75 north then 25 south makes it 50 north.
Ответ:
Given,
The initial position of the boat, d_i=(5i-2j+4k) m
The initial velocity of the boat, u=(4i+j-3k) m/s
The time period, t=8 s
The final velocity of the boat, v=(12i-7j+13k) m/s
To find:
a) The position of the object after 8 s
b) The acceleration of the object.
Explanation:
a)
From the equation of motion, the total distance traveled by the object is given by,
On substituting the known values,
Thus the final position of the boat is,
b)
The acceleration of an object is given by,
On substituting the known values,
Final
a) Thus the position of the boat after 8 s is
The acceleration of the boat is