Two bicycle tires are set rolling with the same initial speed of 3.30 m/s along a long, straight road, and the distance each travels before its speed is reduced by half is measured. one tire is inflated to a pressure of 40 psi and goes a distance of 18.0 m ; the other is at 105 psi and goes a distance of 93.7 m . assume that the net horizontal force is due to rolling friction only and take the free-fall acceleration to be g = 9.80 m/s2 .

At low pressure-

At high pressure-

Explanation:

Initial speed,

Final speed,

Net horizontal force due to rolling friction mg where m is mass, g is acceleration due to gravity, is coefficient of rolling friction

From kinematic relation,

For each tire,

Making the subject

Under low pressure of 40 Psi, d=18 m

Therefore,

At a pressure of 105 Psi, d=93.7

Therefore,

the first american roller coaster was the mauch chunk switchback railway, built in the mountains of pennsylvania in the mid-1800s. the track, originally built to send coal to a railway, was reconfigured as a "scenic tour."