What is her velocity and at the end of the race

Reference no: EM13557491

A sprinterexplodes out of the starting block with an acceleration of+2.14 m/s2 , which she sustains for 1.26 s.Then her acceleration drops to zero for the rest of the race. What is her velocity at t = 1.26 s and at the end of the race?

Reference no: EM13557491

Questions Cloud

Find the acceleration of the stone as tire is being balanced : A tire 2.0 ft in diameter is placed on a balancing machinewhere it is spun so that its tread is moving at a constant speed of59 mph. What is the acceleration of the stone as the tire is being balanced

Old runner can complete course with an average speed : An 18-year-old runner can complete a 10.0-km course with an average speed of 4.49 m/s. A 50-year-old runner can cover the same distance with an average speed of 4.27 m/s. How much later should the younger runner start in order to finish the course at..

Explain the melting point of aqueous solution of a sugar : What is the melting point of a 20% by weight aqueous solution of a sugar whose molecular weight is 180 g/mol. The Kb for water is 0.51 (degrees Celsius*kg)/mol.

Invite members of the group to speak to local schoolchildren : Invite members of the group to speak to local schoolchildren.

What is her velocity and at the end of the race : A sprinterexplodes out of the starting block with an acceleration of+2.14 m/s2 , which she sustains for 1.26 s.Then her acceleration drops to zero for the rest of the race. What is her velocity at t = 1.26 s and at the end of the race?

Evaluate what is the total mechanical energy of the system : A pendulum consists of a 2.0 kg stone swinging on a 4.0 mstring of negligible mass. The stone has a speed of 8.0 m/s when itpasses its lowest point. what is the total mechanical energy of the system

Explain how many grams of fluorine gas are required to react : Finely divided sulfur ignites spontaneously in fluorine gas to produce sulfur hexafluoride, as in the following equation S(s) + 3F2(g) --> SF6(g)

What does the scale readduring the acceleration : A woman stands on a scale in a moving elevator. Her massis 60.0 kg and the combined mass of the elevator and scale is anadditional 815 kg. What does the scale readduring the acceleration

What velocities will the observer find : A body moving at .500c with respect to an observer disintigratesinto two fragments that move in opposite directions relative to their center of mass along the same line of motion as the original body. What velocities will the observer find

User Account

All Pages