Question

A roller coaster typically takes 6.5 s to come to a complete stop from traveling at 30 m/s. If it has a force of 540 N, what is the mass of the coaster

Answer 1

117 kg

Step-by-step explanation:

Step one:

given data

time t= 6.5s

velocity v= 30m/s

Force F= 540N

Required

the mass m

Step two:

Recall from the expression

Ft= mv

make m subject of the formula

m= Ft/v

substitute

m= 540*6.5/30

m=3510 /30

m=117 kg