A 600 kg dragster accelerates from rest to a final speed of 100 m/s in 400 m (about a quarter of a mile) and encounters an average frictional force of 1200 N. What is its average power output in watts and horsepower if this takes 7.30 s?
a. in W
b. in hp
A 600 kg dragster accelerates from rest to a final speed of 100 m/s in 400...
Problem #7 (ignore air resistance) accelerates from rest up to a final speed (v) car with f 40 mph (18 m/s) in a time (t) of 15 second mass (m) of 1.200 kg What is the average power (P) in horsepower of the car during this time? Enter value of average power in hp (or type E to end):
A 1.50 ✕ 103-kg car starts from rest and accelerates uniformly to 15.2 m/s in 12.7 s. Assume that air resistance remains constant at 400 N during this time. (a) Find the average power developed by the engine. hp (b) Find the instantaneous power output of the engine at t = 12.7 s, just before the car stops accelerating. hp
A 1.50 ✕ 103-kg car starts from rest and accelerates uniformly to 17.0 m/s in 12.5 s. Assume that air resistance remains constant at 400 N during this time. (a) Find the average power developed by the engine. hp (b) Find the instantaneous power output of the engine at t = 12.5 s, just before the car stops accelerating. hp
Because it can go from rest to 7.4 m/s (about 17 mi/h) in 1.1 s, one of the fastest-accelerating animals is the cheetah. If its mass is 56.0 kg, determine the average power developed by the cheetah during the acceleration phase of its motion. Express your answer in the following units. (a) watts Can you write an expression for the average power of the cheetah in terms of the work done by the cheetah and the time over which this...
A truck accelerates uniformly from rest to 23.0 m/s in 5.4 s along a level stretch of road. Determine the average power in W) required to accelerate the truck for the following values of the weight (ignore friction) (a) 8.00 x 10' N (b) 1.50 X 10' N Supporting Materials Physical Constants Additional Materials Reading 1/1.5 points Previous Answers OSColPhys1 8.1.001. (a) Calculate the momentum of a 1600 kg elephant charging a hunter at a speed of 7.50 m ....
A 1300 kg sports car accelerates from rest to 70 km/h in 7.4 s. What is the average power in Watts delivered by the engine?
A shot-putter accelerates a 7.1 kg shot from rest to 17 m/s. Part A If this motion takes 1.2 s , what average power was developed? Express your answer using two significant figures. TV5 AEO + 0 2 ? Submit Request Answer
A 1200 kg pickup truck accelerates from rest to 20.0 m/s in 8.00 s along a flat roadway. What net horizontal force does the pavement exert on the tires of the truck?
The cheetah is one of the fastest-accelerating animals, because it can go from rest to 9.5 m/s (about 21 mi/h) in 1.4 s. If its mass is 111 kg, determine the average power developed by the cheetah during the acceleration phase of its motion. Express your answer in the following units. (a) watts W (b) horsepower hp
A helicopter, starting from rest, accelerates straight up from the roof of a hospital. The lifting force does work in raising the helicopter. An 890-kg helicopter rises from rest to a speed of 9.0 m/s in a time of 4.5 s. During this time it climbs to a height of 8.4 m. What is the average power generated by the lifting force?