a ball thrown vertically upward moves for 3 seconds before it starts falling down. if the acceleration of the ball is constantly equal to -9.8m/s^s, at what rate is the ball thrown?

Q: Suppose the radius of a sphere are expanding at a rate of 6 inches per minute. How fast is the…

A: Let us suppose the radius of sphere be R. Given that :   dRdt=6 incheminute.  Radius=Diameter2=122=6…

Q: A cylindrical rod made of ice is melting at a rate of 8 cm3 per minute. When the length of the rod…

A: The formula for the volume of the cylindrical rod is, V=πr2h where r is the radius of the…

Q: Water flows simultaneously into the top of a tank at a rate of (1+ 4t) liters/minute and out of the…

A:

Q: rate of decay is -dy/dt. how c

A: Since, x is given as the amount of Uob at time t.

Q: Water is flowing out of a water tower so that after t minutes ther are 10,000-10t-t^3 gallons…

A: Given that the volume of water flowing out  V(t)=10000−10t−t3

Q: A car is moving along the road at 40 mph. Suddenly, the driver sees a child on the road 100 feet…

A: First calculate speed in 40 mph to ft/s:  u=40 mph  =40×1.467  =58.6667 ft/s