Answer: Car collide with man
Explanation:
Given
Speed of car is ![u=30\ m/s](https://tex.z-dn.net/?f=u%3D30%5C%20m%2Fs)
Distance of the man from the car is ![s=55\ m](https://tex.z-dn.net/?f=s%3D55%5C%20m)
Reaction time ![t_r=0.5\ s](https://tex.z-dn.net/?f=t_r%3D0.5%5C%20s)
Rate of deceleration ![a_d=-10\ m/s^2](https://tex.z-dn.net/?f=a_d%3D-10%5C%20m%2Fs%5E2)
Distance traveled in the reaction time ![d_o=30\times 0.5=15\ m](https://tex.z-dn.net/?f=d_o%3D30%5Ctimes%200.5%3D15%5C%20m)
Net effective distance to cover ![d=55-15=40\ m](https://tex.z-dn.net/?f=d%3D55-15%3D40%5C%20m)
Distance required to stop the car
![\Rightarrow v^2-30^2=2(-10)(s)\\\Rightarrow 0-900=-20s\\\Rightarrow s=45\ m](https://tex.z-dn.net/?f=%5CRightarrow%20v%5E2-30%5E2%3D2%28-10%29%28s%29%5C%5C%5CRightarrow%200-900%3D-20s%5C%5C%5CRightarrow%20s%3D45%5C%20m)
Require distance is more than that of net effective distance. Hence, car collides with the man.
Her acceleration is zero, because her velocity is not changing.
Answer: 49.4g
Explanation:
Weight = 484N
Mass = ?
Recall that the weight of an object is a product of its mass (m) by gravitational acceleration (g). And g is a constant with value of 9.8 ms2
Thus, Weight = mg
484N = mass x 9.8 ms2
Mass = (484/9.8)
Mass = 49.388g
(Rounded to the nearest tenth, the mass becomes 49.4g)
Thus, your father is 49.4grams in mass
The 4 states of matter are solid, gas liquid, and plasma.
Genital warts are warts that are near or on a person's genital areas. For a girl, that means on or near the vulva (the outside genital area), vagina, cervix, or anus. For a guy, that means near or on the penis, scrotum, or anus. ... Genital warts are caused by a group of viruses called HPV (short for human papillomavirus).