what is the maximum speed attained?
what fraction of the total distance is traveled at constant speed?
what total time is required for the trip?
what is the maximum speed attained? what fraction of the total distance is traveled at constant...
A spaceship ferrying workers to Moon Base I takes a straight-line path from the earthto the moon, a distance of 384,000 km. Suppose it accelerates at 20.0 m/s2 for thefirst 15.0 min. of the trip, then travels at constant speed until the last 15.0 min. whenit accelerates at –20 m/s2, just coming to rest as it reaches the moon.(a) What is the maximum speed attained?(b) What fraction of the total distance is traveled at constant speed?(c) What total time is...
is attached to a string and rotated in a vertical circle of radius 04 m with constant speed of 12 m/s. Calculate the tension of the bottom of the circle. string at the top and the (b) Moon is revolving around the earth once every 28 days. Determine its angular speed in rad/s. O If the distance between earth and the moon is 3.8 x 10 m, determine the mass of the earth. 6. A 0.2 kg ball is sliding...
Prob. 2 A car starts from rest, accelerates at 1.5 m/s, and reaches a maximum speed vi. After that it decelerates at 2 m/s until it stops. During the entire process the car has traveled a distance of I km. (a) Sketch the velocity diagram of the particle during the process. (Leave vI as an unknown on the diagram) (b) Determine the maximum speed vi. (e) Determine the total time required.
A star is 14.7 ly (light-years) from Earth. (a) At what constant speed (in m/s) must a spacecraft travel on its journey to the star so that the Earth–star distance measured by an astronaut onboard the spacecraft is 4.46 ly? m/s (b) What is the journey's travel time in years as measured by a person on Earth? yr (c)What is the journey's travel time in years as measured by the astronaut? yr
A chauffeur heads south with a steady speed ofv1 = 20.0 m/sfort1 = 3.00 min,then makes a right turn and travels atv2 = 25.0 m/sfort2 = 2.60 min,and then drives northwest atv3 = 30.0 m/sfort3 = 1.00 min.For this 6.60-min trip, calculate the following. Assume +x is in the eastward direction.(a)total vector displacement (Enter the magnitude in m and the direction in degrees south of west.)For each straight-line movement, model the car as a particle under constant velocity, and draw...
1. Constant Acceleration – 1. Constant Acceleration - 1 g Spaceship. Imagine that a spaceship can accelerate (starting from rest) at a sustained 1 g (9.8 m/sec2) for any desired length of time. Make a table as follows Veloci m/sec km/sec Distance Traveled meters kilometers millions of kilometer billions of kilometers billions of kilometers Elapsed time 1 minute our 1 day 1 week(7 days) 1 month (30 days) km/sec km/sec For each listed time, calculate both the attained velocity and...
1. In the Canadian Grand Prix auto race, the drivers travel a total distance of 552 km in 69 laps around the track. i) What is the distance of 1 lap? ii) If the race lasted 136 min 44 sec, what is the average speed of the car for the race? Express in km/h iii) If the fastest lap time is 2 min and 20 sec, what is the average speed for this lap? Express your answers in m/s. iv)...
1. Constant Acceleration -1g Spaceship. Imagine that a spaceship can accelerate (starting from rest) at a sustained 1 g (9.8 m/sec') for any desired length of time. Make a table as follows Elapsed time 1 minute 1 hour dadayS 1 week (7 days) 1 month (30 days) m/sec km/sec km/sec km/sec km/sec Distance Travel meters kilometers millions of kilometers billions of kilometers billions of kilometers For each listed time, calculate both the attained velocity and the distance traveled. (The numbers...
In 1865, Jules Verne proposed sending men to the Moon by firing a space capsuile from a 220-m-long cannon with fral speed of 10.97 km/s. What would have been the stand an acceleration of 15g for a short time.) m/근 large acceieration experenced by she spece travelers during their launch? (A human an Compare your answer with the free-fall acceleration, 9.80 m/s2 Need Help? es IWatch N An object moves with constant acceleration 3.60 m/s? and over a time interval...
An airplane reaches its takeoff speed of 60 m/s with constant acceleration in 30 s, starting from rest. The time it takes to go from 40 m/s to 60 m / s is: A car starts moving from rest with an acceleration of 0.40 m/ s2. A minute later the acceleration stops, and the car moves with constant speed for 5.0 minutes. The car's brakes are finally applied and stops in 2.0 minutes slowing evenly. The total distance traveled by...