Question

what do you mean by measurement explain its grading system​

Answer 1

Answer:

Grading in education is the process of applying standardized measurements of varying levels of achievement in a course. Grades can be assigned as letters (for example, A through F), as a range (for example, 1 to 6), as a percentage, or as a number out of a possible total (for example, out of 20).

Answer 2

Answer:

Given :

The upward velocity of the stone = 5 m/s

Acceleration of the stone = 10 m/s (Downward direction)

To Find :

The maximum height reached by the stone

Time taken to reach maximum height

Solution :

From equations of motion

v^{2} -u^{2} =2asv

2

−u

2

=2as

Maximum height attained by the stone

Height =s = \frac{v^{2} - u^{2} }{2a}Height=s=

2a

v

2

−u

2

s = \frac{0-25}{2\times(-10)}s=

2×(−10)

0−25

s = 1.25ms=1.25m

The maximum height attained by the stone is 1.25m

Time taken to reach maximum height

v = u+atv=u+at

t = \frac{v-u}{a}t=

a

v−u

t = \frac{-5}{-10}t=

−10

−5

t = 0.5sect=0.5sec

The time taken by the particle to reach maximum height is 0.5sec☺️☺️✌️....

Explanation:

hope it helps u and please mark as brainliest

if u r here , thanks me pls .. I will understand