First solve the potential energy of the biker. using the fomula:
PE = mgh
where m is the mass of the object
g is the acceleration due to gravity ( 9.81 m/s2)
h is the height
PE = 96 kg ( 1120 m ) ( 9.81 m/s2)
PE = 1054771.2 J
then power = Work / time
P = 1054771.2 J / ( 120 min ) ( 60 s / 1 min)
P = 146.5 W
Not sure but a centripetal acceleration.
If (and only if) by 'streched to a distance of 40cm' you mean that it's 40 cm from irs rest position, then the elastic potential energy can be written
Answer:
23.64 m
Explanation:
Potential energy is given by
PE=mgh
Where m us the mass of snowball, g is acceleration due to gravity, h is height.
Also, the weight of an object is given by W=mg hence replacing mg in the above equation with W we obtain
PE=Wh
Making h the subject of the formula then
Substituting 520 J for PE and 22 N for W then