Mechanics | Relativity Answers

7.) A screw was detached from a hot air balloon that is rising at 3.5 m/s at an altitude of 8.3 m. (a) What is the initial velocity of the screw? (b) How long will it take for the screw to reach the ground?

6.) Kyle is driving his car at 15 m/s when he noticed that he is approaching a stalled truck that is approximately 35 m away. He steps on the brakes and the car stop 4.0 m away from the stalled truck. At what rate did the car slow down? Assume that Kyle's reaction time is 2.0 s. Reaction time is the time for a person to notice, think, and act in response to a given situation.

If a Willy bat flies from x,y,z coordinate (-2m,9m,-3m) to coordinate (6m,-2m,-3m).what is the displacement change in r to n unit vector notation is ∆r parallel to one of the three coordinate plane. If so, which plane(vectors)

Distance from India to Canada is 11,462 km which is 1.5 greater than India to u.k. calculate distance between India to u.k. in mega meter

A man walk 5kms due east and then 10kms due north. Find his
Total distance covered
Resultant displacement

A perticle moving in semicircle of radius 6 m with constant speed of 12 m/s .calculate average velocities

4.) A car is accelerated from 2.0 m/s to 5.0 m/s in 1.5 s. Find (a) the magnitude of its acceleration and (b) the distance traveled during the time of observation?

A boy is inside a bus moving at 5.0m/s toward the east. He is walking at 1.0 m/s toward the front. What is the velocity of the boy as observed by (a) a passenger sitting inside the bus and (b) another passenger waiting for the bus at a nearby bus stop?

An object displaced from 5m height reaches ground at a distance of 10m.what is its final velocity?

If the dog runs 10m to the north and then turns and runs 20 m to the west and traveled for 10 seconds, what is its speed in going from its starting position to its final position. Explain you answer