Question

a car falls of ledge and drop to the ground In 0.5 s let g=10m/s^2 what is CGS unit of velocity​

Answer 1

Answer:

Explanation:

Given,

time taken=0.5s

g=10ms  

−2

 

As the car is under free fall, the initial speed is zero.

(a) Under free fall,  

u=0  

a=g

v=u+at

v=0+10×0.5

v=5ms  

−1

 

(b) Average speed =  

2

u+v

​  

=  

2

0+5

​  

=2.5ms  

−1

 

(c) From newton's equation of motion, As u=0,

h=ut+  

2

1

​  

gt  

2

 

When h is the height, t is the time of free fall, g is the acceleration due to gravity. Putting the values in the above equation, we get

h=  

2

1

​  

×10×(0.5)  

2

=5×0.25=1.25m

Answer 2

Answer:

The cgs unit in cm /s

Explanation:

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