Acessna 150 aircraft has a lift-off speed of approximately 125 km/h. what minimum constant acceleration does this require if the aircraft is to be airborne after a take-off run of 271 m? answer in units of m/s 2 .

To calculate the minimum constant acceleration , we use the equation of motion with uniform acceleration,

Here, v is final velocity, u is initial velocity, a is acceleration and s is distance.

Given   and  .

Substituting these values with u = 0 (because initial velocity is zero) in above equation, we get

Thus, the minimum constant acceleration is

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."

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