An object has a mass of 13.5 kilograms. what force is required to accelerate it to a rate of 9.5 m/s2? a. 128.25 n b. 173.75 n c. 81.00 n d. 132.30 n

Option A is correct

The force is required is  128.25 N

Step-by-step explanation:

Given: mass of an object (m) = 13.5 kilogram and acceleration (a) = 9.5

To find the force required;

According to Newton's second Law:

Net Force= mass times acceleration i.e F = ma

Using second law, and substitute the given values above we have;

We know that 1 Newton =

therefore; the force is required is, 128.25 N

29 is the correct answer

step-by-step explanation:

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.