Answer :
given data,
79 kg person stands on a scale in an elevator.
In this case there is acceleration of 2 m s⁻² in upward direction so
R - mg = ma
R = m (g +a) = 79 x (9.8 + 2)
=79×11.8
=932.2
The reading of scale will be more than his actual weight.
It will read weight as 932.2/9.8 = 95.12 kg.
What is accelerated explanation?
Acceleration image result
Acceleration, the rate of change of velocity over time for both velocity and direction. A point or object moving in a straight line accelerates as it accelerates or decelerates. Circumferential motion is accelerated because it always changes direction even at constant velocity.
What does the acceleration formula mean?
Acceleration
(a) is the change in velocity (Δv) versus time (Δt),
given by the formula a = Δv/Δt.
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