QUESTION 4 - ENERGY METHODS
An athlete throws a shot with weight mkg.
At the beginning of the throwing motion, the shot is held h_(1)m above the ground.
The athlete raises the shot to a height of h_(2)m before releasing it.
The shot reaches a maximum height of h_(3)m above the ground before coming to rest at ground level having travelled a horizontal
distance of x_(1)m.
The values of m,h_(1),h_(2),h_(3), and x_(1) can be found in the table below.
Table of parameters
QUESTION 4(A)
Determine v_(y0) the vertical component of velocity of the shot in (m)/(s) at the time of release.
QUESTION 4(B)
Determine v_(x0) the horizontal component of velocity of the shot in (m)/(s) at the time of release.
QUESTION 4(C)
Determine v_(Mag ) the magnitude of the velocity of the shot in (m)/(s) at the time of release.
QUESTION 4(D)
How much work (P) does the athlete do on the shot in terms of potential energy? Report your answer in Nm.
QUESTION 4 - ENERGY METHODS
An athlete throws a shot with weight m kg
At the beginning of the throwing motion, the shot is held hi m above the ground.
The athlete raises the shot to a height of h2 m before releasing it
The shot reaches a maximum height of hs m above the ground before coming to rest at ground level having travelled a horizontal
distance of m.
The values of m,h,h2,h3,and can be found in the table below
Table of parameters
m (kg)
7.47
hi (m)
1.30
h2 (m)
1.90
h3 (m)
3.90
xi (m)
17.28
QUESTION 4(A)
Determine Uy o the vertical component of velocity of the shot in m/s at the time of release.
QUESTION 4(B)
Determine v o the horizontal component of velocity of the shot in m/s at the time of release.
QUESTION 4(C)
Determine vMag the magnitude of the velocity of the shot in m/s at the time of release.
QUESTION 4(D)
How much work (P) does the athlete do on the shot in terms of potential energy? Report your answer in Nm.
