A vehicle of mass 2000 kg has a constant resistance to motion of
3000 N. The maximum speed of the vehicle, when travelling on a
horizontal road, is 120 km/hour. Find the acceleration of the car
when it is travelling at a speed of 50 km/hour up a hill inclined
at an angle of 3o to the horizontal, with the engine
operating at maximum power (as
sume the resistance to motion
remains unchanged whether the car is travelling uphill or
horizonally
A vehicle of mass 2000 kg has a constant resistance to motion of 3000 N. The...
1 The motorcycle has a mass of 750 kg and can maintain a steady speed of 30 ms-t when travelling up a hill inclined at arcsin to the horizontal with the engine working at 50 kW. 4 Find the acceleration of the car when it is travelling down the same hill with the engine working at 30 kW at the instant when the speed is 20 ms-1. Given that the resistance to motion of a car is proportional to the...
21) The following figures apply to a certain car running in top gear on a level road: Road speed (km/h) 20 40 60 70 80 Power required to overcome resistance to motion (kW) 2.5 10 27 40 59 Power developed by engine (kW) 20 40 52 50 37 22) Draw the curves of power required and power developed on a km/h base and determine: a) the maximum speed cm on the level b) the maximum power available for acceleration: c)...
a 1800 kg car experiences a combined force of air resistance and friction that has the same magnitude whether the car goes up or down a hill at 24 m/s. going up a hill, the cars engine produces 44 hp more power to sustain the constant velocity than it does going down the same hill. At what angle is the hill inclined above the horizontal?
2. The electric vehicle Tesla Model S has a drag coefficient of 0.24, a mass of 2100 kg, and a frontal area of 2.4 m2. The coefficient of rolling resistance of its tires is 0.01. Recall the density of air at sea level is 1.3 kg/m3. How much kinetic energy is required to overcome rolling resistance and air resistance (drag) at Autobahn speeds of 180 km/hr for a 200 km trip? How much useful energy (in MJ) and money (in...
Problem09 Cicular Motion of a car moving with uniform.speed A car with mass (m-300 Kg) is travelling around a croular track with radus 100m ar a constant speed 30 mile per hour as shown below. The angles of rotation are (30) and 6 (60) respectively (a)What is the magnitude of the car's acceleration? (b)What is the x-component of the car's acceleration when it is at point A? (What is the y-component of the car's acceleration when it is at point...
Problem 1 (50): A 3100 lb car has a 5-speed manual transmission with i;= 3.22, 12 = 2.15, 14 = 1.05, 1,5 = 0.68. The final drive ratio 3.08. The air drag coefficient is 0.29 and the front projected area is 22 square feet. The rolling resistance coefficient is 0.02 and the tire radius is 11 inches. The mass factor is 1.0. The drive train efficiency is 0.93. The engine wide-open-throttle output is shown in the figure, a) Determine the...
Problem 1 (50): A 3100 lb car has a 5-speed manual transmission with in = 3.22, 1,2 = 2.15, 1,4 = 1.05, 1,5 = 0.68. The final drive ratio 3.08. The air drag coefficient is 0.29 and the front projected area is 22 square feet. The rolling resistance coefficient is 0.02 and the tire radius is 11 inches. The mass factor is 1.0. The drive train efficiency is 0.93. The engine wide-open-throttle output is shown in the figure. a) Determine...
An 850-kg car has a useful power output of 40.0 horse-power (1 hp = 746 W). (a) How long will it take to reach a speed of 15.0 m/s on level ground, neglecting friction? (b) Suppose instead it has to climb up a hillside road at an angle of 5° relative to the horizontal. Neglecting friction, what is the maximum speed it can achieve on this hill? (Hint: At this constant speed, ΔK = 0, so the net work is...
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Problem 1 (50): A 3100 b car has a 5-speed manual transmission with in = 3.22, 1,2 = 2.15, 1,4 = 1.05, 1,5 = 0.68. The final drive ratio 3.08. The ar drag coefficient is 0.29 and the front projected area is 22 square feet. The rolling resistance coefficient is 0.02 and the tire radius is 11 inches. The mass factor is 1.0. The drive train efficiency is...
Equations of Motion: Translation 1 of 5 > The car shown has a mass of m 1350 kg and a center of mass located at G. The coefficient of static friction between the wheels and the road is Determine the shortest time it takes the car to reach a speed of v wheels. 80.0 km/h, starting from rest, if the engine drives only the rean 0.240 The dimensions are a-1.25 m Express your answer to three significant figures and include...