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dolphi86 [110]
3 years ago
5

A car advertisement states that a certain car can accelerate from rest to

Physics
2 answers:
kaheart [24]3 years ago
6 0

Answer:

a = 2.22 [m/s^2]

Explanation:

First we have to convert from kilometers per hour to meters per second

40 [\frac{km}{h}]*[\frac{1h}{3600s}]*[\frac{1000m}{1km}] = 11.11 [m/s]

We have to use the following kinematics equation:

v_{f}= v_{i}+(a*t)

where:

Vf = final velocity = 11.11 [m/s]

Vi = initial velocity = 0

a = acceleration [m/s^2]

t = time = 5 [s]

The initial speed is taken as zero, as the car starts from zero.

11.11 = 0 + (a*5)

a = 2.22 [m/s^2]

Aliun [14]3 years ago
5 0

Refer to the attachment.

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Answer:

d. All of these

Explanation:

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mathematically

workdone = force x distance.

from the answers,  work is being done because there is force applied in a certain distance.

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4 years ago
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A hill that has a 28.1% grade is one that rises 28.1 m vertically for every 100.0 ml of distance in the horizontal direction. At
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Answer:

\theta=15.70^\circ

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4 years ago
A 2 kg blob of putty moving at 3 m/s slams into a 3 kg blob of putty at rest. Which blob has the most momentum prior to the coll
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initial momentum of 2 kg blob is given as

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P_2 = m_2v_2

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5 0
3 years ago
Why is doing research helpful if you're creating the procedure for an experiment?
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B. The answer is most likely B                                                                    

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A man in a lift is moving upwards in a constant speed.the weight of the man is W.Acc
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Answer:

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N=mg

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3 years ago
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