I Lycamobile 9:16 AM Find the nstantanees t For the graph veloity 1S sh -1.5ms b

Question

I Lycamobile 9:16 AM Find the nstantanees t For the graph veloity 1S sh -1.5ms b. 1.6 ms . None of the above 5. Find the distance travelled between 0 and 10 (rtr to problem 4) a. 16 m 160m 150 m d. ?? .80m 6 An ebject is drepped from a height of 10 m.Calculate the velocity that will hit the ground a. 18 m/s b. 9.89 m/s .4.42 m's d. 14 ms e. None of the above 7. A projectile is fired from the ground with an initial velocity of 30 m/'s at an angle of 60. Caleulate the magnitude of the vector velocity at the top of the trajectory. a. 25.98 m/s b. 30 m/s c. 20 m/s d. 15 m/s e. 10 m/s 8. The pesition of an eject is gives by the parametric eqeations -2+4-6 Calculate the average vector velecity betweess and 2

Explanation / Answer

4. a = slope of v vs t curve

a = (0 - 16)/ (18 - 10) = - 2m/s^2

Ans(d)

5. area under the v vs t curve,

d = (16 x 10) = 160 m Ans(b)

6. m g h = m v^2 /2

v = sqrt(2 x 9.8 x 10) = 14 m/s

Ans(d)

7. at top, vx = 0

v =vy = 30 sin60 = 25.98 m/s

Ans(a)

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