un objeto se lanza verticalmente hacia arriba con una velocidad de 40 km/h calcular el tiempo que tarda cuando alcanza su altura maxima

1.1326 seconds

Explanation:

First we can convert the speed to meter per second:

40 / 3.6 = 11.111 m/s

The gravity is given by -9.81 m/s^2.

The object will reach the maximum height when the velocity is zero, so we can use the formula:

V = Vo + a*t

Where V is the final velocity, Vo is the inicial velocity, a is the acceleration and t is the time:

0 = 11.111 - 9.81*t

9.81t = 11.111

t = 1.1326 seconds

a) are muscles that have bands.

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explanation:

a fuel engine ( known as a gasoline engine in american english )is an internal combustion engine with spark ignition, designed to run on petrol (gasoline) and similar volatile fuels.