Which of the following variables would you need in order to calculate how long it would take a horizontally launched projectile
1 answer:
You might be interested in
Answer:
4.0 m/s
Explanation:
In the first part of the run, the athlete runs a distance of
at a speed of
So, the time he/she takes is
In the second part of the run, the athlete covers an additional distance of
with a speed
So, the time taken in this second part is
So, the total distance covered is
d = 300 m + 300 m = 600 m
And the total time taken
t = 100 s + 50 s = 150 s
Therefore, the average speed for the entire trip is
Answer:
The work done by the force is 1000 J.
Explanation:
Given:
Mass of object (m) = 10 kg
Acceleration of the object (a) = 5 m/s²
Displacement of the object (S) = 20 m
Using Newton's second law, we have:
Force = Mass × Acceleration
Plug in the given values and solve for force 'F' acting on the object. This gives,
Now, work done by the force 'F' is equal to the product of force 'F' and the displacement it cause in its direction which is 20 m.
Therefore, the work done by the force is given as:
Work = Force × Displacement
Plug in the values given and solve for 'W'. This gives,
Therefore, the work done by the force is 1000 J.