At what speed do a bicycle and its rider, with a combined mass of 110 kgkg , have the same momentum as a 1400 kgkg car traveling at 6.0 m/sm/s

Explanation:

Step one:

given data

let the mass of the rider be m,=110kg

let the velocity be v=?

let the mass of the car be M,=110kg

let velocity of the car V=6m/s

Step two:

the momentum of an object is given by the expression

P=mv

Step two:

since the two the bicycle rider must have the same momentum as the car,

then we need to equate their momentum

mv=MV

110*v=1400*6

110v=8400

divide both sides by 110 to find v

v=8400/110

v=76.36m/s

The rider is expected to have a speed of 76.36m/s

real, smaller and upside-down.   so the answer should be b.