- Messages
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- Points
- 11
1) A force in the +x direction with magnitude F(x)=18.0 N -(0.530 N/m)x is applied to a 7.00kg box that is sitting on the horizontal, friction-less surface of a frozen lake. F(x) is the only horizontal force on the box.
a) If the box is initially at rest at x=0. what is its speed after it has traveled 15.0 m?
2) A juggler throws a bowling pin straight up with an initial speed of 9.00 m/s.
a) How much time elapses until the bowling pin returns to the juggler's hand?
3) At the instant the traffic light turns green, a car that has been waiting at an intersection starts ahead with a constant acceleration of 3.05 m/s^2. At the same instant a truck, travelling with a constant speed of 21.5 m/s , overtakes and passes the car.
a)How far beyond its starting point does the car overtake the truck?
b)How fast is the car travelling when it overtakes the truck?
Thank You...
a) If the box is initially at rest at x=0. what is its speed after it has traveled 15.0 m?
2) A juggler throws a bowling pin straight up with an initial speed of 9.00 m/s.
a) How much time elapses until the bowling pin returns to the juggler's hand?
3) At the instant the traffic light turns green, a car that has been waiting at an intersection starts ahead with a constant acceleration of 3.05 m/s^2. At the same instant a truck, travelling with a constant speed of 21.5 m/s , overtakes and passes the car.
a)How far beyond its starting point does the car overtake the truck?
b)How fast is the car travelling when it overtakes the truck?
Thank You...