Answer:
Explanation:
Let the total force be F
The force that produces motion in the x direction is given as,
Let the frictional force be given as:
Thus, the net force is given as:
Lec poid se mesure avec
1 answer:
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Answer:
A) 3.11 Hrs
Explanation:
Wave speed is given by the formula
now we will have
now the time taken by the wave to move the distance 560 km is given as
t = 3.11 hours
Answer:
21 m
Explanation:
The motion of the frog is a uniform motion (constant speed), therefore we can find the distance travelled by using
where
d is the distance covered
v is the speed
t is the time
The frog in this problem has a speed of
v = 2.1 m/s
and therefore, after t = 10 s, the distance it covered is
Answer:
c) 0.16 m/s2
Explanation:
The computation of the acceleration during the first km of travel is shown below
Given that
Final velocity = v = 42 m/s
Initial velocity = u = 0 m/s
Distance = 5.6km
Based on the above information, we need to apply the following formula
As we know that
= 0.1575 m/s ^2
hence, the correct option is c. 0.16 m.s^2