A cow is walking at a velocity of 1 m/s and speeds up to 8 m/s in 7 seconds. Calculate the acceleration of the cow. Round your answer to 2 decimal places

Explanation:

Given that,

Initial velocity, u = 1 m/s

Final velocity, v = 8 m/s

Time, t = 7 s

We need to find the acceleration of the cow. Let it is a. It is equal to the rate of change of velocity. Its formula is :

So, the acceleration of the cow is .

there are no correct statementd on the list of choices you provided.

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards