A particle of Mass M, moving with initial velocity V. is incident on a stationery particle of mass M2. After collision, M, was deflected through an angle 0 and M2 an angle o. If the
velocities of the particles after collision were V, and V2 respectively. Show that for an elastic
collision;
M1
(a). V2 = 2V
cos
My+M2
(b)). 6) * = 2 ) ma+ME
cose +
M2-M1
MA+M2
M2
(c).
M
Sine
Sin(20+

The force will determine the acceleration.

An alligator swims to the left with a constant velocity of 5 \,\dfrac{\text{m}}{\text s}5 s m ? 5, space, start fraction, m, divided by, s, end fraction. when the alligator sees a bird straight ahead, the alligator speeds up with a constant acceleration of 3 \,\dfrac{\text {m}}{\text s^2}3 s 2 m ? 3, space, start fraction, m, divided by, s, start superscript, 2, end superscript, end fraction leftward until it reaches a final velocity of 35 \,\dfrac{\text {m}}{\text s}35 s m ? 35, space, start fraction, m, divided by, s, end fraction leftward. how many seconds does it take the alligator to speed up from 5 \,\dfrac{\text {m}}{\text s}5 s m ? 5, space, start fraction, m, divided by, s, end fraction to 35 \,\dfrac{\text {m}}{\text s}35 s m ? 35, space, start fraction, m, divided by, s, end fraction?

Abookcase has a mass of 38 kg and the coefficient of friction between it and the floor is 0.82 what is the maximum force of friction between the bookcase and the floor a 372n b 305n c 412n d 449n