"neutron collides elastically with a helium nucleus"
A neutron collides elastically with a helium nucleus (at rest initially) whose mass is four times that of the neutron. The helium nucleus is observed to rebound at an angle θ'2 = 40° from the neutron's initial...
A tennis ball of mass m = 0.087 kg and speed v = 43 m/s strikes a wall at a 45° angle and rebounds with the same speed at 45° (Fig. 7-29). What is the impulse given the wall?
Impulse = M x V
Sin (theta) = opp/hyp
The Attempt at a Solution...
Ok, the question as written is:
A bicyclist is traveling down a hill which has a 9.75 degree incline at a constant velocity of 5.95m/s. The mass of the cyclist and bike combined is 98.7kilograms.
- What is the coefficient of friction of the surface the biker is traveling on...
Nasu, no i am not given an Fa.
All I have is: A biker rides up an 9.75degree hill at a constant speed of 5.95m/s. The biker and bicycle together have a mass of 98.7kg.
Find the coefficient..
What force does the system need to make the biker go up the hill at the same velocity..