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Fofino [41]
3 years ago
13

a=vf-vi/t is the equation for calculating the acceleration of an object. write out the relationship shown in the equation using

words
Physics
2 answers:
nevsk [136]3 years ago
8 0

Answer:

Acceleration is defined as the ratio between the change in velocity of an object and the time it takes for the object to change the velocity.

In formula, this is written as:

a=\frac{v_f -v_i}{t}

where

vf is the final velocity

vi is the initial velocity

t is the time it takes for the object to accelerate from u to v

Note that acceleration is a vector, so it can also be caused by a change in the direction of the velocity, not only by a change in its magnitude.

gregori [183]3 years ago
3 0
Acceleration is the rate of change of velocity, which means the change in velocity (vf - vi) with time (t)

where, vf is the final velocity and vi is the initial velocity
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2 years ago
A 12.8-kg monkey hangs from a cord suspended from the ceiling of an elevator. The cord can withstand a tension of 156N and break
Varvara68 [4.7K]

Answer:

2.4 m/s^2

Downward

Explanation:

We are given that

Mass of monkey=12.8 kg

Tension=156 N

We have to find the magnitude of the elevator's minimum acceleration.

T=m(g+a)

Where g=9.8 m/s^2

Substitute the values

156=12.8(a+9.8)

9.8+a=\frac{156}{12.8}=12.2

a=12.2-9.8=2.4 m/s^2

Hence, the acceleration =a=2.4 m/s^2

Direction of the elevator's minimum acceleration is downward because the elevator moves downwards.

8 0
3 years ago
The apparent weight of a student in alift is 564N . if the mass of the student is 60.3kg, what is the acceleration of the lift ?
Yuki888 [10]

Answer:

-.457 m/s^2

Explanation:

Actual weight =   60 .3 (9.81) = 591.54 N

Accel of lift changes this to    60.3 ( 9.81 - L)     where L - accel of lift

                                           60.3 ( 9.81 - L ) = 564

                                               solve for L = .457 m/s^2  DOWNWARD

                                                        so L = - .457 m/s^2

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The answer to this question is false
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3 years ago
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