Help me with this question please
1 answer:
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Answer:
Magnitude is 25.8 m/s and direction is
Explanation:
From the law of conservation of linear momentum
where
and
are masses of bullet and stones respectively,
and
are the initial velocities of bullet and stone respectively,
and
are the final velocities of bullet and stone respectively
Substituting 6g=0.006 Kg for mass of bullet, 0.1Kg for mass of stone, 350 m/s for initial velocity of bullet and 250 m/s as final velocity for stone but initial velocity of stone is zero
Substituting 21 for and 15 for
To find direction
Therefore, magnitude is 25.8 m/s and direction is
Answer:
0.83m/s
Explanation:
Given parameters:
distance = 1000m
time taken = 20min
Unknown:
Speed of the walking person = ?
Solution:
To solve this problem;
Speed =
Time taken should be in seconds;
1 min = 60s
20min = 20 x 60 = 1200s
Speed = = 0.83m/s