Abody of mass 2kg is thrown up with a speed of 25m/s. find its maximum potential
energy.

so 1/2mv^2

and the mass is 2 kg and the velociy is 25 so 1/2(2)(25)^2

which is 625 joules which is your answer

this is because the law of energy conservation states that energy can't be taken out of the system so assuming there is no friction the PE is the same as the KE

answer: the direction of the wind is expressed as the direction from which the wind is blowing. for example, easterly winds blow from east to west, while westerly winds blow from west to east.

explanation:

the minimum constant speed at which she can catch the train is 2.7 m/s

given:

acceleration = 0.6

time = 4.5 s

to find:

velocity = ?

formula used:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

solution:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

v = 0 + (0.6 × 4.5)

v = 2.7 m/s

the minimum constant speed at which she can catch the train is 2.7 m/s