<u>Answer:</u>
Horizontal component of the velocity when the opposing player fields the ball = 11.00 m/s
<u>Explanation:</u>
The velocity of a body in 2 dimension can be resolved in to 2 parts, horizontal and vertical component. In the case of free falling or projectile body the horizontal component remains the same but vertical component is affected by acceleration due to gravity.
In this case Initial velocity = 17.6 m/s
Angle between horizontal axis and direction of velocity = 51.3 °
We know that horizontal component = v cos θ
Vertical component = v sin θ
Since the horizontal component remains the same, it is unchanged when the opposing player fields the ball.
So horizontal component of the velocity = v cos θ = 17.6 * cos 51.3 °
= 11.00 m/s
A: In theory, no. According to Newton's first law, a body in motion will remain in motion. ... Objects do not stop because of a lack of force; they stop because a different force is being applied. For example, friction is a force that acts against an object's motion.
Answer:
B
Explanation:
kinetic energy (KE) is the energy possessed by moving bodies. It can be expressed as:
KE = m
Where: m is the mass of the object, and v its speed.
For example, a stone of mass 2kg was thrown and moves with a speed of 3 m/s. Determine the kinetic energy of the stone.
Thus,
KE = x 2 x
= 9
KE = 9.0 Joules
Assume that the speed of the stone was 4 m/s, then its KE would be:
KE = x 2 x
= 16
KE = 16.0 Joules
Therefore, it can be observed that as speed increases, the kinetic energy increases. Thus option B is appropriate.