9.81 m/s2 is the acceleration of an object in free fall, responding only to gravity
with no other forces on it, on or near the Earth's surface ... otherwise known as
the acceleration of gravity.
It's always true on or near the surface of the Earth ... if you can provide those
conditions: No other forces except gravity acting on the falling object, including
no air resistance !
The acceleration of the car can be calculated using the formula: acceleration = (change in velocity) / time. In this case, the change in velocity is 40 m/s and the time is 80 seconds. Therefore, acceleration = 40 m/s / 80 s = 0.5 m/sĀ². So, the correct answer is A. 0.5 m/sĀ².
When the rock is accelerating downward at 3.5 m/s^2, its weight remains the same at 138 N regardless of acceleration. Weight is a measure of the force of gravity acting on an object, and in this case, the weight is constant regardless of any acceleration the rock experiences.
The SI unit for force that is equal to 1 kg m/s^2 is the newton (N).
An acceleration of -2 m/s^2 means that the velocity of an object is decreasing by 2 meters per second every second. The negative sign indicates that the acceleration is in the opposite direction of the velocity.
The force needed is 45,872 N. This is calculated by multiplying the mass of the airplane (9760 kg) by the acceleration (4.7 m/s^2).
acceleration
The acceleration of the car can be calculated using the formula: acceleration = (change in velocity) / time. In this case, the change in velocity is 40 m/s and the time is 80 seconds. Therefore, acceleration = 40 m/s / 80 s = 0.5 m/sĀ². So, the correct answer is A. 0.5 m/sĀ².
5,400
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5,400 N.
648 N
5,400 N.
answer is (D) 120N
90 N
The force required is 70,310 newtons.
fu
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