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- Space debris left from old satellites and their launchers is becoming a hazard to other satellites. One can estimate how long such a collision lasts; if an object of length l is traveling at a velocity v, it will cover a distance l in a time equal to l / v. This is the approximate time of interaction for an object being smashed against another object. Parts (a) and (b) are already completed.Part (a) Calculate the speed (in m/s) of a satellite in an orbit 940 km above Earth’s surface. v = 7360 Part (b) Suppose a loose rivet is in an orbit of the same radius that intersects the satellite’s orbit at an angle of 90°. What is the speed (in m/s) of the rivet relative to the satellite just before striking it? vtot = 10410 Part (c) Given the rivet is 2.95 mm in size, how long will its collision with the satellite last? In this approximation, the rivet is completely destroyed and the collision does not slow the rivet down. Part (d) If its mass is 0.485 g, what is the average force it exerts…I know the answer to the first part is 3 m/s but I don't know how to get the answer for the second part. What equation should I use/ how do I solve it?Question 2 The following data were collected for the distance traveled versus time for a rocket: Time (s) Distance (km) Velocity 20 40 60 80 32 60 90 124 ? ? Use the most appropriate three-point formula to estimate the rocket's velocity at each given time. What is the velocity of the rocket in km/h at t= 70 s?
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- George walks to a friend’s house. He walks 750 meters North, then realizes he walked too far. He turns around and walks 250 meters South. The entire walk takes him 13 seconds. What is his velocity in meters per second? Also, is the acceleration due to gravity negative or positive or it depends? I'm really confused. Please help and explain in an easy to understand.Arthur and Betty start walking towards each other when they are 100 m apart. Arthur walks with a speed of 3.2 m/s and Betty with a speed of 3.1 m/s. How long does it take to meet? Write the answer using 3 significant figuresYou are stationary and you observe a frisbee being thrown out of a car. The car is going 50 m/s to the right. The frisbee is thrown at a speed of 15 m/s (relative to the car) to the left. How fast do you see the frisbee fly by? Express your answer with the appropriate units. HA Value Units v = Submit Request Answer
- John and Anna both travel a distance of 8 kilometeres. a) How long does it take John to cover the distance if he does half the distance at 6.3 kilometers per hour and the other half at 1.2 kilometers per hour? b) What is his average speed for the total distance? c) How long does it take Anna to cover the distance of 8.00 kilometers if she goes 6.3 kilometers per hour for 2/3 of the total time and 1.2 kilometers per hour for 1/3 of the time? d) what is her average speed for the whole trip?1. Arthur and Betty start walking toward each other when they are 100. m apart. Arthur has a speed of 3.0 m/s and Betty has a speed of 2.0 m/s. Their dog, Spot, starts by Arthur's side at the same time and runs back and forth between them at 5.0 m/s. By the time Arthur and Betty meet, what distance has Spot run?7) A particle’s position along the x-axis is described by x(t) = A t + B t², where t is in seconds, x is in meters, and the constants A and B are given below. Randomized Variables A = -4.8 m/s B = 7.9 m/s2 a) What is the velocity, in meters per second, of the particle at the time t1 =3.0s? b) What is the velocity, in meters per second, of the particle when it is at the origin (x = 0) at time t0 > 0?