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3 years ago

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5. Alex goes cruising on his dirt bike. He rides 700 m north, 300 m east, 400 m north, 600 m west, 1200 m south 300 m east and f

inally 100 m north. What distance did he cover? What was his displacement? (use 1cm = 100m)

1 answer:

Gala2k [10]3 years ago

5 0

Answer:

Explanation:

i hope your mind is clear your full answer in image

please see in image

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3 years ago

A square piece of tin has 12 inches on a side. An open box is formed by cutting out equal square pieces at the corners and bendi

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Answer:

Explanation:

Given a square Piece whose side is 12 inches

Now square pieces are cut from each corner to make it a open box

Suppose x is the length of square piece at each corner

then

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Dimension of new box is $(12-2x)\times (12-2x)\times x$

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we get x=6 and 4 but at x=6 volume becomes zero therefore x=4 is valid

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3 years ago

A busy chipmunk runs back and forth along a straight line of acorns that has been set out between his burrow and a nearby tree.

saveliy_v [14]

Answer: a = 1.32m/s2

Therefore, the average acceleration is 1.32m/s2

Explanation:

Acceleration is the rate of change in the velocity per time

a = change in velocity/time

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Given;

Final velocity v2 = 1.63m/s

Initial velocity v1 = -1.15ms

time taken t = 2.11s

Substituting into eqn 1

a = [1.63 - (-1.15)]/2.11

a = (1.63+1.15)/2.11

a = 2.78/2.11

a = 1.32m/s2

Therefore, the average acceleration is 1.32m/s2

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3 years ago