Question

Мотоцикл трогаясь ас места через 15 с набирает 25 м/с. С каким ускорением он движется?

Answer 1

Задачи у ВАС все очень простые! Я решу две или три задачи! Остальные постарайтесь сами решить. 1.1,2,3-однотипные задачи. 3. a=v/t; a=16/2=8;
4. S6=0,5*a*6^2-0,5*a*5^2; S16=0,5*a*16^2-0,5*a*15^2; S16/S6=(16^2-15^2)/(6^2-5^2); S16=S6*(29/9); S16=12*(29/9);
5. v=(2*a*S)^0,5; v=(2*1,6*1,25)^0,5;
6. x=3+2*t+0,1*t^2; x0=3; v0=2; a=0,2;
7. v=5+2*t; S4=5*4+0,5*1*16-5*3-0,5*1*9=20+8-15-4,5=8,5.

Answer 2

Calculation of Acceleration

To calculate the acceleration of the motorcycle, we can use the formula:

Acceleration (a) = (Final velocity (v) - Initial velocity (u)) / Time (t)

Given that the motorcycle starts from rest (initial velocity u = 0 m/s), reaches a final velocity of 25 m/s, and the time taken is 15 seconds, we can substitute these values into the formula:

Acceleration (a) = (25 m/s - 0 m/s) / 15 s

Simplifying the equation:

Acceleration (a) = 25 m/s / 15 s

Calculating the acceleration:

Acceleration (a) = 1.67 m/s².

Therefore, the motorcycle is moving with an acceleration of 1.67 m/s².

Please note that the calculation assumes constant acceleration throughout the motion of the motorcycle.