Agolf ball is struck at ground level. the speed of the golf ball as a function of the time is shown in figure 4-36, where t = 0 at the instant the ball is struck. the scaling on the vertical axis is set by va=16 m/s and vb=32 m/s. answer the following questions:

(a) how far does the golf ball travel horizontally before returning to ground level?
(b) what is the maximum height above ground level attained by the ball?

Explanation:

initial total speed of the ball is given as

minimum speed during its trajectory

now the speed in x direction will be the minimum speed

also we know that

now total time of the flight

now horizontal range will be

Part b)

as we know that at maximum height vertical velocity is zero

so we will have

now we have

are you like autistic or something?

xd

can be answered using momentum.

momentum = p

p1= mass1 * velocity1

p1 = p2

therefore

p1 = 6kg * 4m/s

p1 = 24kgm/s

p2=m2 * v2

24 kgm/s = 7kg * v2

v2 = 24 kgm/s / 7kg

v2= 3.42 m/s