Question

M=1 kg V 1 = 1 м/с V 2 = 2 м/с Ek1 = ? Ek2 = ?

Answer 1

Ек1 = mu²1/2 => Ек1 = 1×1²/2 = 0.5Дж

Ек2 = mu²2/2 => Ек2 = 1×2²/2 = 2Дж

Answer 2

Ответ:

Объяснение:

Ek=(m*V^2)/2

Ek1=1*1^2 / 2= 0.5Дж

Ek2=1*2^2 / 2= 2Дж

Answer 3

To calculate the kinetic energy (Ek) of an object, you can use the formula:

Ek = (1/2) * m * V^2

where: Ek is the kinetic energy m is the mass of the object (in kilograms, given as 1 kg in this case) V is the velocity of the object (in meters per second)

Let's calculate the kinetic energy for both cases:

Case 1: m = 1 kg V1 = 1 m/s

Ek1 = (1/2) * 1 kg * (1 m/s)^2 Ek1 = (1/2) * 1 kg * 1 m^2/s^2 Ek1 = 0.5 * 1 kg * 1 m^2/s^2 Ek1 = 0.5 Joules

Case 2: m = 1 kg V2 = 2 m/s

Ek2 = (1/2) * 1 kg * (2 m/s)^2 Ek2 = (1/2) * 1 kg * 4 m^2/s^2 Ek2 = 0.5 * 1 kg * 4 m^2/s^2 Ek2 = 2 Joules

So, the kinetic energy in case 1 (Ek1) is 0.5 Joules, and in case 2 (Ek2) it is 2 Joules.