25/02/2014 Newsround

It's Tuesday morning, you're live with Newsround. I'm Leah with

today's top stories, including: We find out what it takes to become a

British bobsleigh driver. And: I'm Laura Trott. And I'm Jason Kenny,

and we're here to answer your questions.

But first, it's deadline day for Ukraine's new leaders. Former

President, Viktor Yanukovych, was removed from power just days ago

after huge anti-government protests and violence. Now the new leaders

have until the end of the day to form a new, united government.

Meanwhile British investigators are in the country helping to find out

who told police to shoot at protestors last week. Dozens of

people were killed in the clashes. Head to the website for more info on

the story, including the report on the week's events, and a picture

gallery telling you how the protests came about. Team GB's athletes have

arrived home, bringing with them the four medals that will bring them

more funding for winter sports. The men's curlers were first to appear

with their silver medals. Lizzie Yarnold showed off her gold too

fresh from carrying the union flag at the Games' closing ceremony. This

morning, Britain's bobsleigh stars have been out and about talking to

reporters, and it turns out if you're a good sprinter, you could be

good at bobsleigh too. It's not too different. We came to add some extra

speed to give it a magic touch, and I think we've done it. If you are a

kid watching the Winter Olympics, how do you get involved? Go on the

British bobsleigh website, and we have a futures programme where

youngsters can try the sport out. There's a variety of ways to get

involved, and hopefully the younger generation have been inspired by our

performance. From one set of Olympic heroes to another. The World Track

Championships begin tomorrow with Laura Trott and Jason Kenny aiming

to defend the titles they won last year. They're two of Britain's

biggest and best cycling stars, but before they headed off to Colombia

to take part, they found the time to answer some of your questions. Great

start by Laura Trott. Straight out of the gate.

There he is, the Olympic sprint champion, he wins the gold medal,

and he's won it in style with fantastic confidence.

I chose to be a cyclist because I was good at it, to be honest. I like

competing in anything and I love winning. I just like the winning

feeling. Once you win one race, you want to win them all.

There were four people fighting for three spots in the team pursuit, so

we were competing against each other, so it was difficult. You have

to train hard to get to the Olympics. We train super-hard.

When I first started cycling I was eight years old and I did my first

competition when I was ten, I think, a National Championships in

Manchester. I had an older brother and I wanted to ride bikes, and I

started riding on the track when I was 12. My first race was when I was

12 as well. My main goal this year is to go to the world Championships

and hopefully come away with a couple of medals, and then in the

summer we have the Commonwealth Games. The Commonwealth Games in

Glasgow should be good fun, so I'm looking forward to that.

My favourite moment in my career was winning two gold medals at the

London Olympic Games. My favourite moment in my career is winning two

gold medals at the London Olympic Games as well.

There he is, he wins the gold medal, and he won it in style.

Footy now and the FA says it will investigate claims that supporters

threw coins at Wayne Rooney during United's 2-0 win at Crystal Palace

at the weekend. United are in Greece tonight, where they face Olympiakos

in the Champions League. Rooney, who won Europe's top prize with United

back in 2008, wants them to go all the way again.

We want to win, so the feeling you get when you actually win the trophy

is incredible. There is no way would want to stop one. The to win every

year, and that might be impossible, but if we can go to the final it

would be great for us and it's an opportunity to win the trophy, so,

hopefully we can do that. Last up, to the story of this incredibly cute

panther cub's brave recovery. This tiny cat was finding his first weeks

of life quite tough while living at a wildlife refuge in Florida and he

nearly died. But luckily the cub was sent off to hospital and received

special treatment to build him back up. He's now happy, healthy and

enjoying his bottle of milk! That's all from me, Newsround's back this

afternoon. Have a great day, whatever you're doing.