Change The Ff Direct To Indirect Statement. "I Am Tired To The Death" Said Willy
Change the ff direct to indirect statement. "I am tired to the death" said willy
Willy said that he was tired to the death.
O Avoid An Accident A Driver Steps On The Brakes To Stop A 950 Kg Car Traveling At 60 Km/H. If The Braking Is Distance Is 25 M, How Much Force Is Need
o avoid an accident a driver steps on the brakes to stop a 950 kg car traveling at 60 km/h. if the braking is distance is 25 m, how much force is needed to stop the car Good Day... Problem: To avoid an accident a driver steps on the brakes to stop a 950 kg car traveling at 60 km/h. if the braking is distance is 25 m, how much force is needed to stop the car. Given Data: Velocity initial = 60 km/hr 60 km/hr × 1000 m/ 1km × 1 hr / 3600 s = 16.667 m/s Velocity final = 0 m/s (stop) d (distance) = 25 meters a (acceleration) = ? unknown Solution: First: We will solve for acceleration with the formula Vf^2 = Vi^2 + 2 ad To solve for a (acceleration) we can use a = Vf^2 - Vi^2 / 2d a = Vf^2 - Vi^2 / 2d = (0 m/s)^2 - (16.667 m/s)^2 / 2 × 25 m = - 277.789 m^2/s^2 / 50 m = -5.556 m/s^2 (decelerating) Second: The force needed to stop the car is the mass times acceleration: m (mass) = 950 kg a (acceleration) = -5.556 m/s^2 F = ma = 950 kg × -5.556 m/s^2 = - 944.44 kg.m...
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