7. What is the force on a 1,000 kg elevator that is in a free-fall after the elevator cable broke?
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Ответ:
The acceleration of a boat if the resultant force on it is 4000 N and its mass is 1240 kg is 0.3 m/s².
Explanation:
Given
Force F = 4000 NMass m = 1240 kgTo determine
Acceleration a = ?
Important Tip:
The acceleration of a boat can be found using the formula F = maUsing the formula
where
F is the force (N)m is the mass (kg)a is the acceleration (m/s²)now substituting F = 400, m = 1240 in the formula
Switch sides
Divide both sides by 1240
Simplify
Therefore, the acceleration of a boat if the resultant force on it is 4000 N and its mass is 1240 kg is 0.3 m/s².