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horrorfan [7]
3 years ago
9

What force is required to give an object with mass 2000 kg an acceleration of 3.5 m/s2

Physics
2 answers:
ch4aika [34]3 years ago
8 0
According to Newton's Second Law:
F = m*a = 2000 kg*3.5 m/s^2 = 7000 N
Alex787 [66]3 years ago
4 0

<u>Answer:</u> The force exerted on the object is 7000 N

<u>Explanation:</u>

Force is defined as the push or pull on an object with some mass that causes change in its velocity.

It is also defined as the mass multiplied by the acceleration of the object.

Mathematically,

F=m\times a

where,

F = force exerted on the object

m = mass of the object = 2000 kg

a = acceleration of the object = 3.5m/s^2

Putting values in above equation, we get:

F=2000kg\times 3.5m/s^2\\\\F=7000N

Hence, the force exerted on the object is 7000 N

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An applied force of 50 N is used to accelerate an object, that weighs 73 N, to the right across a frictional surface. The object
Hunter-Best [27]

Answer:

5.38 m/s^2

Explanation:

NET force causing the object to accelerate  =  50 -10 = 40 N

Mass of the object =  73 N / 9.81 m/s^2 = 7.44 kg

F = ma

40 = 7.44 * a         a = 5.38 m/s^2

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2) How could a motorcycle (a vehicle with less mass) make a van (a
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You have a tungsten sphere (emissivity ε = 0.35) of radius 25 cm at a temperature of 25°C. If the sphere is enclosed in a room w
egoroff_w [7]

Answer:

Explanation:

Stefan's formula for emission of radiation is

E = e σ A  ( T⁴ - T₀⁴ )

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E = .35 x 5.67 x 10⁻⁸ ( 298⁴ - 268⁴ ) x 4π x .25²

= 1.9845 x 10⁻⁸ ( 78.86 - 51.58 ) x 10⁸ x .0625

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A 5-turn square loop (10 cm along aside, resistance = 4.0 ) is placed in a magnetic field that makes an angle of30o with the pla
andreev551 [17]

Answer:

Explanation:

Area A of the coil = .1 x .1 = .01 m²

no of turns n = 5

magnetic field B = .5 t²

Flux  Φ perpendicular to plane passing through it.= nBA sin30

rate of change of flux

dΦ/dt = nAdBsin30 / dt

= nA d/dt (.5t²x .5 )

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3 years ago
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