Question

plz sove this who didnt know plz leave​

Answer 1

Answer:

10) when we throw a ball up in the sky the acceleration due to gravity becomes negative.

As the force is acting opposite to the force of gravity

12) 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 = 2u+v=20+5=2.5ms−1

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

h=ut+21gt2

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=21×10×(0.5)2=5×0.25=1.25m

Answer 2

dekhlo and believe Karo!!!!

Eight months after the arrival of Covid-19 and a nationwide shutdown, political life in Switzerland seems almost back to business. Plexiglass-protected parliamentarians met for the autumn session, demonstrations are again allowed (under conditions), and most votes and local elections are going ahead as planned.

But the reality is different for campaigners behind people’s initiatives and referendums, the two key instruments of the Swiss direct democracy system. While on paper they can go out onto the street and gather support, the pandemic is slowing them down.

“It’s definitely more difficult to collect signatures,” said one campaigner from the Communist Swiss Labour Party, canvassing in Bern last weekend for a local initiative demanding free public transport. Not only are there fewer people on the street, but social distancing rules and the added barrier of a mask means they are less keen to be approached, he said