Recent content by jsr219

The triangle is a right triangle The 90 degree angle is situated at the orgin... so the height follows up the y-axis or x= o and the base follows the x-axis at y=0... more or less the height and base make the x and y axis I intergrating with repect to x, that's why i created an equation...

Find the x and y coordinates of the center of mass of a flat triangular plate of a height H =17.3cm and a base B = 10 Cm Homework Equations Area = A = 1/2bh x = 1/A ∫ x(f(x)) y = 1/A ∫ 1/2((f(x)^2) The Attempt at a Solution Area = 1/2(10)(17.3) = 86.5 f(x) = 17.3-1.73x or...

If car 1 has a a mass(m) and car 2 has a mass(2m), in a head on collision, with both cars traveling the same velocity, which car experiences a bigger acceleration ? my answer - car 1 If two identical cars with identical speeds and masses collide, the impulse received by each car is the...

A block of mass 5kg slides without friction at a speed of 8m/s on a horizontal table surface until it strikes and sticks to a mass of 4kg attached to a horzontal spring. The spring has a constant of k= 2000 n/m. The spring is in turn attached to a wall. How far will the spring be compressed...

How much work is done when a 75-kg person climbs a flight of stairs 10 m high at a constant speed A.) 7.35 * 10^5 j B.) 750 j c.) 75 j D.) 7500 j E.) 7350 J W = (f)(d) f = ma W= (ma)(d) Now I'm assuming that the force is parallel to the stairs (distance as the person walks...

Your friends car is parked on a cliff overlooking the ocean on an incline that makes an angle of 18.9 (degrees) below the horizontal. The brakes fail, and the car rolls from rest down the incline for a distance of 26.7 m to the edge of the cliff, which is 82.4 m above the ocean, and...

A basketball player shoots a basketball a distance of 6.5 m from the hoop releasing the ball at a height of 1.5 m above the ground. The basketball goal’s rim stands 3 m above the ground. If the player shoots the ball at an angle of 43 degree with the horizontal, what initial speed must he shoot...

For the initial speed of an ideal projectile, how many launch angles equal for the range of the projectile -1 -2 -more than 2 but an infinite number of -only one if the angle is 45 but other wise only 2 -an infinite number