Question

what force is needed to accelerate a sled (mass = 55 kg) at 1.4 m/s2 on horizontal frictionless ice?

Answer 1

given;

mass=55kg

acceleration=1.4m/s²

friction=0

now;

we know,

force=mass×acceleration

substituting the given values,

force=55×1.4

force=77N

Answer 2

The force needed to accelerate a sled is 77 N.

Explanation:

Given that,

Mass of the sled, m = 55 kg

Acceleration of the sled, $a=1.4\ m/s^2$

To find,

Force is needed to accelerate a sled.

Solution,

Let F is the force that is needed to accelerate a sled. It is given by the product of mass and acceleration such that,

$F=m\times a$

$F=55\ kg\times 1.4\ m/s^2$

F = 77 N

So, the force needed to accelerate a sled is 77 N.

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