3 years ago

The three vehicles shown below are all traveling at a speed of 15 m/s, but only the pickup truck has a changing velocity.

Physics

2 answers:

sweet [91]3 years ago

8 0

Answer: is traveling on a curve in the road

Explanation:

Andreas93 [3]3 years ago

8 0

Answer: its slowing down

Explanation:

The car is slowing down because its on the corner of the track.

If it were to go the same speed the other cars are going while on the straight part of the track it would go off the track therefore the car must slow down to stay in the race

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A spring with a force constant of 5.3 n/m has a relaxed length of 2.60 m. when a mass is attached to the end of the spring and a

olganol [36]

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3 years ago

The vector position of an object is given by r what is the torque acting on the object about the origin when a force f = (−12.5i

attashe74 [19]

Let the vector position of the object in the (x-y) plane be
$\vec{r} = x \hat{i} + y \hat{j}$

The applied force is
$\vec{f} = -12.5 \hat{i}
$

By definition, the applied torque is
$\vec{T} = \vec{r} \times \vec{f} = (x\hat{i} + y\hat{j}) \times (-12.5y \hat{i}) = 12.5\hat{k}$

Answer: $12.5y \, \hat{k}$