Write the difference between distance and displacement

1 answer:

7 0

In order to determine distancetraveled, you must measure the length of the entire path taken by the object. ... Distance is a scalar quantity. Displacement is an object's change in position, only measuring from its starting position to the final position.

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Which is a characteristic of thermal energy transfer through convection

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Explanation: heat transfer is called convection. hopefully this was helpful.

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A rock is thrown vertically upward from some height above the ground. It rises to some maximum height and falls back to the grou

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Answer:

At the highest point the velocity is zero, the acceleration is directed downward.

Explanation:

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I attached an image from my lecture today, I find it to be helpful. You can see that because of gravity the acceleration is pulled downwards.

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2 years ago

A shell is fired at an angle of 35° above the horizontal at a velocity of 40 m/s. (a) What is it's speed at the highest point of

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Answer:

Part a)

$v_f = v_x = 32.77 m/s$

Part b)

T = 4.68 s

Explanation:

Part a)

Shell is fired at speed of 40 m/s at angle of 35 degree

so here we have

$v_x = 40 cos35 = 32.77 m/s$

$v_y = 40 sin35 = 22.94 m/s$

since gravity act opposite to vertical speed of the shell so at the highest point of its trajectory the vertical component of the speed will become zero

so at the highest point the speed is given

$v_f = 32.77 m/s$