A sports car moving at constant velocity travels 130m in 4.9s. It then brakes and comes to a stop in 4.2 seconds, what is the magnitude of its acceleration (assumed constant) in m/s^2? I got : a = 6.3 m/s^2 Express the answer in terms of “g”s where g = 9.0 m/s^2

A particle is initially at rest and begins to accelerate to the right as 13t-t^2  m/s. How far does the particle move in 3 seconds?  the instructor told me I had to integrate, the velocity is not constant.

The position of a bird in the xy-plane is given by Bti + (yt-c t2)j where a = 1.2 m/s2, y = 2.4 and ß = -4.8 m/s. What is the bird's net acceleration at 2.0 s (magnitude and direction)? O 2.4 m/s? in the -y direction 7.2 m/s2 in the +y direction O 1.2 m/s? in the +y direction O7.2 m/s? in the -y direction 5.4 m/s2 in the +y direction O 5.4 m/s2 in the -y direction O 2.4 m/s2 in the +y direction O 1.2 m/s² in the -y direction

fast plz

If we know a truck is moving with a velocity 10.0 m/s at t = 0.0 s, and its velocity becomes 12.0 m/s at time t = 3.0 s. What is the position of the truck at t = 3.0 s ? O 5 m O 20 m O 30 m O 10 m O 33 m

You travel 1000 m in 25 seconds, accelerating the whole time at a constant rate. What is the rate of acceleration? Initial velocity (vi) = 0 m/s.

Planet X was just discovered orbitinga nearby star! It orbits a start that is 6.9 times themass of our sun in a solar system just 31.3 light-years away. The acceleration due to gravity thereis 0.07 g. After making some measurements in lab, you start to daydream about travel to other planets. Your spring gun can launch a projectile with a speed of 3.7 m/s. What would happen if you were tolaunch a projectile at an angle of 32 ° abovehorizontal on Planet X? (a) What maximum height would the projectilereach?(b) How far would the projectile travel before ithit the ground? Assume the projectile lands at the same height it was launched from.

The acceleration of a free falling body is described by a = 9.81 [1-10-4. v²] m/sec², where v is in m/sec and the positive direction is downward. If the body is released from rest at a high altitude, calculate the velocity when t = 5 sec in m/sec using the formula below. I In/a+x\ + C dx 1 2 2 S a²-x² 2a la-x, for a²x², where a and c are constants .