Projectile Motion
If a projectile leaves your hand at 500 m/s, what is the velocity it has when it comes back to your hand?
What is 500 m/s?
What is the normal force?
It is the force that supports weight, for example the table, floor, and desk.
What are the two types of friction?
What is static and kinetic?
A plane is going 200 km east and encounters wind going 56 km west. What is the resultant vector?
What is 144 km east?
What is Newtons 2nd law?
What is Force = Mass x acceleration?
What is the trajectory?
What is the path that a projectile takes when it is launched into the air?
Does gravity pull an object down or up on Earth?
What is down. (9.8 m/s^2)
What is the type of friction that is between the ice and an ice skaters skates?
What is kinetic friction?
A car is heading north at 80 mph. It changes direction and heads west at 40 mph. What is the resultant and its direction?
What is 89.44 mph NW?
What is the acceleration of a 20 kg man being pulled with a force of 5 N?
What is 0.25 m/s^2?
Starting at rest, a ball falls for 5 seconds, what is the distance it fell?
what is 122.5 m?
What is the weight of a 66 kg man on Earth?
What is 646.8 N?
What is the difference between kinetic and static force?
Kinetic creates heat and static does not.
A train is heading 200 mph north and encounters headwinds of 40 mph. What is the resultant?
what is 160 mph?
True or false, force does not affect the acceleration of an object?
What is false?
At the top of the trajectory of a projectile, what is the vertical acceleration?
What is 9.8?
What is the mass of a person on Neptune, where their weight is 87N and the acceleration of gravity is 13.3 m/s2 ?
What is 6.54 kg?
The coefficient is .98 and the mass of an object is 78000 g. What is the force of friction?
What is 749.11 N?
What is the difference between vector and scalar?
Vector has direction and magnitude.
A stunt man weighs 533000 grams and jumps of a 25 m building onto a trampoline. What is the net force he has when he lands on the trampoline?
what is 5,223 N?
At the top of a projectile what is its vertical veloctiy?
What is the acceleration of a 145000 g toy on an unknown planet? The force is 450 N.
What is 3.10 m/s2?
If the material is rough vs soft how would that affect the coefficient?
The rougher the material the higher the coefficient.
A bus is going a constant horizontal velocity and drives of the cliff. What happens to the horizontal velocity? What about the vertical?
The horizontal stays the same.
In a physics lab, Kate and Rob use a hanging mass and pulley system to exert a 2.45 N rightward force on a 0.500-kg cart to accelerate it across a low-friction track. If the total resistance force to the motion of the cart is 0.72 N, then what is the cart's acceleration?
What is 3.46?