Answer: The closer the planet is to the sun, the faster it travels
Explanation:
The speed of the planets goes down as the chart shows planets farther away from the sun
Answer:
You may tip the car over or crash.
Explanation:
Going really fast at high speeds and turn a corner might make the car crash into an object or fall over.
Answer:
He could re read his answear.
Explanation:
Answer:
Explanation:
Given a ball of mass m= 0.5kg
The ball moves in as circle of radius r= 0.4m
Speed of the ball is v = 4m/s
Centripetal force is exerted on ball and it is given as
Fc = m•ac
ac is centripetal acceleration and it is given as
ac = v²/r
Then,
Fc = mv²/r
Fc = 0.5 × 4²/0.4
Fc = 20N.
The force exerted on the ball is 20N
