1. 2.12105 J. The final kinetic energy is. KE f mv2. (875.0 kg)(44.0 m/s)2 2.What is the velocity of the two hockey players after the collision? ... A 10.0-kg test rocket is fired vertically from.

Explanation:

Sana maka tulong

6 0

3 years ago

A tiger leaps horizontally from a high rock with a speed of 4.5 m/s. She lands 50 m away

VladimirAG [237]

A tigers lost one and yyyyyyyy was the first day in a while and they didn’t have a back up 4.5 50m

7 0

2 years ago

Hola tengo un taller de física y nose como resolver este pregunta

Blizzard [7]

a) 0.26 h

b) 71.4 km

Explanation:

In order to solve the problem, we have to know what is the final velocity of the car.

Here, we assume that the final velocity reached by the car is

$v=300 km/h$

Therefore, we can find the time taken by the car to reach this velocity by using the suvat equation:

$v=u+at$

where:

u = 250 km/h is the initial velocity

$a=190 km/h^2$ is the acceleration of the car

v = 300 km/h is the final velocity

t is the time

Solving for t, we find:

$t=\frac{v-u}{a}=\frac{300-250}{190}=0.26 h$

In order to find the distance covered by the car, we can use the following suvat equation:

$s=ut+\frac{1}{2}at^2$

where:

s is the distance covered

u is the initial velocity

a is the acceleration

t is the time

For the car in this problem, we have:

u = 250 km/h

t = 0.26 h (calculated in part a)

$a=190 km/h^2$

Therefore, the distance covered is

$s=(250)(0.26)+\frac{1}{2}(190)(0.26)^2=71.4 km$

8 0

2 years ago