6. an aircraft is travelling along a runway at a velocity of 25m/s. it accelerates at a rate of 4.4m/s for a
distance of 750m before taking off. calculate its take-off speed.

85 m/s

Explanation:

The equation for velocity v and a uniform acceleration a:

This equation has 2 unknown. You need a second equation to solve the problem.

The equation for position x and a uniform acceleration:

This equation has only one unknown, the time t. You can combine both equations and eliminate time.

Solving for v:

what was the acceleration of the 2 kg cart?

⇒ 16.0 cm/s2

what was the acceleration of the 4 kg cart?

⇒ 8.1 cm/s2

what was the acceleration of the 6 kg cart?

⇒ 5.3 cm/s2

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