1. A car is able to provide 300kW of tractive power, as it accelerates from 36 to 288km/hr, along a flat and level section of road. This is achieved in 2 seconds. b) Calculate the tractive force at 288km/hr.
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- The pilot of a jet transport brings the engines to full takeoff power before releasing the brakes as the aircraft is standing on the runway. The jet thrust remains constant, and the aircraft has a near-constant acceleration of 0.32g (where g is the gravitational acceleration). If the takeoff speed is 208 km/h, calculate the distance (m) required to takeoff.Estimate the power requires to accelerate a 1350 kg vehicle traveling at 48 kph up a 5% grade at the rate of 1.8 m/sec². The roadway has a straight alignment and a badly broken and patched asphalt surface. Rolling resistance of vehicle is 167 N/metric-ton, Air density = 1.2 kg/m³, and Aerodynamic drag coefficient = 1.3. Express power in watts using the formula P = RV. Use the formula for:Consider a truck with a maximum power of 500 kW and a frontal area of 11 m2 . The maximum speed the truck can maintain on an incline with a grade of 2.5% is 15 m/s. Assume air density ρ = 1.225 kg/m3 and the “drag coefficient” is CD = 0.75. What is the mass of the truck?
- In traveling a distance of 3.3 km between points A and D, a car is driven at 86 km/h from A to B for t seconds and 42 km/h from C to D also for t seconds. If the brakes are applied for 4.8 seconds between B and C to give the car a uniform deceleration, calculate t and the distance s between A and B.The brakes of a car are applied, causing it to slow down at a rate of 10 ft/s2. Knowing that the car stops 300 ft, determine (a) how fast the car was traveling immediately before brakes were applied, (b) the time required for the car to stop.Calculate the stopping distance on a highway at an ascending gradient of 2% for a designspeed of 90 kph with a total reaction time of 2.5 sec. and the coefficient friction of 0.5
- A car starts from rest and travels 10 sec. with an acceleration of a = 4 – 0.3t, then runs for 30 sec. at constant velocity and finally comes to rest by decelerating at 3.125 m/s2. Determine the velocity of the car after 10 sec. Determine the distance traveled by the car during the period of 10 sec. c. Determine the total distance traveled by the car until it stops.The car is traveling at a constant speed through a dip in the road. The radius of curvature of the road at point A, the bottom of the dip is 471m. What speed of the car (kph) would result in an acceleration of magnitude 0.2g when the car is at A? use 3 decimal placesIn a certain situation it was estimated that 24.9% of the braking force was applied to the rear brakes in order for the car to develop the maximum forces required stop the car. If the total braking force develop was 5565 N and the road is wet (u = 0.6) wheel base of 295 cm and a center of gravity 75 cm above the pavement road and 120 cm behind the front axle. What was the speed of the car in kph?
- The bicycle has a velocity v = 4 ft/s, and at the same instant the rear wheel has a clockwise angular velocity ω = 3 rad/s, which causes it to slip at its contact point A. Determine the velocity of point AA vehicle is moving down at a speed of 80 kph along an inclined surface (G = 2%). If the coefficient of friction is 0.33, compute the braking distance in meters. Round off to two decimal places.compute the braking distance (in meters). if a vehicle is moving down at a speed of 83 kph along an inclined surface (G = 2%). and the coefficient of friction is 0.33.