During physical activity of high intensity, your heart will beat at a percentage of its maximum rate. whi
this type of activity?
a.
40%-50%
50%-70%
o
70%-85%
d.
85%-100%

D

Explanation:

If it is of very high intensity it will be 85-100%

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

answer; how far out of place which the object finished relative to the starting location;