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2 years ago

A train moves with a uniform velocity of 36km/hr 10sec. calculate the distance travelled

Physics

1 answer:

galben [10]2 years ago

5 0

Given:-

Speed = 36 km/hr

converting speed into m/s

Speed = 36*5/18

Speed = 10 m/s

t = 10 sec

By using the Formula

Distance = Speed * time

D = 10*10

D = 100 m

Hope it helps....

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An object has a mass of 2,000kg. what is its weight on earth? show your work

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Answer:

F=m*g is the formula and the answer is 19,620 kg

Explanation:

Since the formula is F=m*g and Earth's gravity is 9.81 m/s^2 all you need to do is multiply 2,000 by 9.81

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2 years ago

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2. What is the mass of an object that has 50000 J

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m= 666.67 or 667

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A 46.8-g golf ball is driven from the tee with an initial speed of 58.8 m/s and rises to a height of 24.7 m. (a) Neglect air res

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Answer:

a) the kinetic energy of the ball at its highest point is 69.58 J

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Explanation:

Given that;

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K.Ei + P.Ei = KEf + PEf

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we substitute

K.Ef = [1/2 × 0.0468 × (58.8 )²] - [0.0468 × 9.8 × 24.7]

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so our raw height h' will be ( 24.7 m - 8.11 m) = 16.59 m

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also using the principle of energy conservation;

K.Ei + P.Ei = KEh + PEh

1/2mv² + 0 J = 1/2mv₂² + mgh'

1/2mv₂² = 1/2mv² - mgh'

multiply through by 2/m

v₂² = v² - 2gh'

v₂ = √( v² - 2gh' )

we substitute

v₂ = √( (58.8)² - 2×9.8×16.59 )

v₂ = √( 3457.44 - 325.164 )

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$dE = \frac{k \lambda R d\theta }{R^2} sin(\theta )$

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2 years ago

A train moves with a uniform velocity of 36km/hr 10sec. calculate the distance travelled​

A train moves with a uniform velocity of 36km/hr 10sec. calculate the distance travelled