Question

can you answer all the questions. i am having my test tomorrow and tomorrow is also the last day of submissionhelp mee ​

Answer 1

Answer:

I CAN'T TELL YOU THE FIRST QUESTION HERE,I CAN HELP YOU WITH EQUATION

v = u + at

S = ut + a$t^{2}$/2

$v^{2}$ = $u^{2}$ + 2as

Explanation:

IN Q-2

CONVERT MINUTES TO HOUR = 1/6 HOUR

a = 10 km $h^{-2}$

u = 30 km /h

=> S = ut + a$t^{2}$/2

= 30 x 1/6 + [10 x 1/6 x 1/6] /2

5 + 0.138 km

5.138 km

and final velocity = v = u + at

v = 30 + 10 x 1/6

v = 31.66 km / h

IN Q-3

1] SPEED IS A SCALAR QUANTITY             |  VELOCITY-VECTOR QUANTITY                                                                        

2] SPEED CAN'T BE NEGATIVE                  |  CAN BE NEGATIVE                                                                                  

3] IN A UNOFORM CIRCULAR MOTION    | IN A UNOFORM CIRCULAR                                                                  

SPEED REMAIN CONSTANT                      | MOTION VELOCITY CAHNGES