Soru
9. How much force is needed to accelerate a car whose mass is 500 kg from rest to a velocity of 60m/s in 60 sec? (10 points) a) 5N b) 50 N c) 500 N d) 500 ON
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Usta · 5 yıl öğretmeni
Uzman doğrulaması
Cevap
To find the force needed to accelerate the car, we can use the formula:Force = mass * accelerationFirst, we need to calculate the acceleration. We can use the formula:acceleration = (final velocity - initial velocity) / timeGiven:mass = 500 kginitial velocity = 0 m/s (since the car starts from rest)final velocity = 60 m/stime = 60 sPlugging in the values, we get:acceleration = (60 m/s - 0 m/s) / 60 sacceleration = 60 m/s / 60 sacceleration = 1 m/s²Now, we can calculate the force:Force = 500 kg * 1 m/s²Force = 500 NTherefore, the correct answer is c) 500 N.