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3 years ago

What is the speed of an airplane that travels 4500 miles in 6 hours?

Physics

2 answers:

MakcuM [25]3 years ago

6 0

Answer:

750 miles / hour

Explanation:

velocity = distance / time

= 4500 miles / 6 hours

= 750 miles / hour

aniked [119]3 years ago

5 0

Given:-

Speed of the airplane (s) = 4500 miles
Time taken (t) = 6 h

To Find: Speed (v) of the particle (airplane).

We know,

s = vt

where,

s = Distance,
v = Speed &
t = Time taken.

Similarly,

v = s/t

→ v = (4500 miles)/(6 hours)

→ v = 750 miles/hour ...(Ans.)

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A basketball has a mass of 601 g. Moving to the right and heading downward at an angle of 29 degree to the vertical, it hits the

olga55 [171]

Answer:

Change in momentum, $\Delta p=6.3\ kg-m/s$

Explanation:

It is given that,

Mass of the basketball, m = 601 g = 0.601 kg

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It bounces up with the same speed, again moving to the right at an angle of 29 degree to the vertical. We need to find the change in momentum. It is given by :

$\Delta p=mv\ cos\theta-(-mv\ cos\theta)$

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$\Delta p=2\times 0.601\times 6\times \ cos(29)$

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So, the change in momentum of the basketball is 6.3 kg-m/s. Hence, this is the required solution.

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