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elixir [45]
3 years ago
5

B. Jerome plays middle linebacker for South's varsity football team. In a game against

Physics
1 answer:
weqwewe [10]3 years ago
4 0

Answer:

Option D

670 Kg.m/s

Explanation:

Initial momentum is given by mv=82*5.6=459.2 Kg.m/s (taking eastward as positive)

Final momentum is also mv but v being westward direction, we take it negative

Final momentum=82*-2.5= -205 Kg.m/s

Change in momentum=Final momentum-Initial momentum=-205-459.2=-664.2 Kg.m/s

Impulse=change in momentum=664.2 Kg.m/s rounded off as 670 Kg.m/s

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3 years ago
What is the speed over the ground of a mosquito flying 2 m/s relative to the air against a 2 m/s headwind?
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We have that the speed over the ground of a mosquito flying 2 m/s relative to the air against a 2 m/s headwind is

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8 0
2 years ago
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What is difference between kilowatt and kilowatt hour?
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-- 'Kilowatt' is a bigger <em>rate</em> of using energy . . . 1,000 joules per second.

-- 'Kilowatt - second' is the amount of energy used in one second,
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-- 'Kilowatt - hour' is the amount of energy used in one hour,
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3 years ago
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