There's not enough information in the question to calculate the player's velocity. But we can find his average speed.
Speed = (distance covered) / (time to cover the distance)
Speed = (15 meters) / (3 sec)
Speed = (15/3) (m/s)
Speed = 5 m/s
There's no information telling us what direction he ran, so it's not possible to say anything about his velocity. ('Velocity' is not just a big word for 'speed'. It's a different thing, and to describe it, you need to know the speed AND the direction of the motion.)
Answer:
2r
Explanation:
As we know that
The displacement is the total distance measured between the initial or start and final or destination point
If particle cover half path of the circle, the displacement can easily find out by considering the distance between the start and destination point
We attached the diagram for better understanding
As per the diagram.
The displacement after half-circle is
AB = OA + OB
= r + r
= 2r
Answer
81.94 m
Explanation
The centripetal force of an object moving in a circular path is given by:
F = mv²/r Where m is the mass of the object, v is the constant velocity and r is the radius of the curve.
F = mv²/r
3,300 = (1600×13²)/r
3,300 = 270,400/r
r = 270,400/3,300
= 81.94 m