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ziro4ka [17]
3 years ago
12

an eskimo pushes a loaded sled with a mass of 300kg over the frictionless surface of hard-packed snow.he exerts a constant 170n

force as he dose so.what is the sled's acceleration?
Physics
2 answers:
Irina18 [472]3 years ago
7 0

Answer:

The sled's acceleration is \vec{a}=0,57\frac{m}{s^{2}}\hat{x} .

Explanation:

Newton's second law of motion states that in an inertial frame of reference the net force \vec{F} acting on an object is equal to the mass m of the object multiplied by its acceleration \vec{a}:

                                                   \vec{F}=m\vec{a}

\vec{F} and \vec{a} are vectors and the mass m is a scalar that we assume to be constant. We also assume that the net force \vec{F} and the acceleration \vec{a} are in the horizontal direction x.

We are told that |F| = 170 N and that m = 300 kg. So we get that:

                                               170N=300kg\ a

                                               170\frac{kg\ m}{s^{2}}=300kg\ a

                                               a=\frac{170}{300} \frac{kg\ m}{s^{2}} \frac{1}{kg}

                                               a=0,57\frac{m}{s^{2}}

Then the sled's acceleration is

                                               \vec{a}=0,57\frac{m}{s^{2}}\hat{x}

                                               

                                             

Shalnov [3]3 years ago
3 0

Answer:

0.567 m/s²

Explanation:

Newton's second law:

∑F = ma

170 N = (300 kg) a

a = 0.567 m/s²

Round as needed.

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