with the height being 10 m tall how much kinetic energy will a device have to cancel assuming the device weighs 2 kg?
1 answer:
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Answer:
The time for the entire race is 11.39 sec.
Explanation:
Given that,
Distance = 15 m
Remainder distance = 100 m
Suppose A sprinter begins a race with an acceleration of 3.4 m/s².
We need to calculate the time
Using equation of motion
Put the value in the equation
We need to calculate the final velocity of sprinter
Using equation of motion again
Put the value into the formula
We need to calculate the distance covers by sprinter
The sprinter need to covers only 85 m.
We need to calculate the time
Using formula of time
Put the value into the formula
We need to calculate the time for the entire race
Put the value into the formula
Hence, The time for the entire race is 11.39 sec.