thanks!! When the projection is at the maximum height of the trajectory, which o

Question

thanks!!

When the projection is at the maximum height of the trajectory, which of the following is true?V stands for velocity and 'a' stands for acceleration. V = 0 and a = 0 V = 0 and a not equal 0 both V = 0 and a = 0 V not equal 0 and a not equal 0 You throw two balls,If in the second throw, the ball leaves your hand with twice the velocity of the first throw (but same angle), the horizontal range of the second throw will be 4 times the range of the first throw 2 times the range of the first throw 1/2 times the range of the first throw 2 times the range of the first throw Two case are 1.0km apart, moving each other (along staright road).The speeds of the cars are 20m/s and 15m/s. How much time does take for them to meet?(one is on the right lane and the other let lane, so they don't crash) 200.s 50.s 67.s 29.s

Explanation / Answer

you have asked 3 different questions.As per chegg guidelines i can only answer one.Please raise different question for others.

I will solve the last one for you

given are

s=1km=1000m

v1=20m/sec

v2=15m/sec

t=?

when they are heading toward each other

S=vt

(20+15)t=1000

T=28.6 sec

Answer is D

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.