A car accelerates from rest at a constant rate \( \alpha \) for some time after which it deceler...

Channel:
Subscribers:
447,000
Published on ● Video Link: https://www.youtube.com/watch?v=_yu_0l5zNxY



Category:
Let's Play
Duration: 5:32
8 views
0


A car accelerates from rest at a constant rate \( \alpha \) for some time after which it decelerates at a constant rate \( \beta \) to come to rest. If the total time elapsed is \( t \) seconds, the total distance travelled is
(a) \( \frac{4 \alpha \beta}{(\alpha+\beta)} t^{2} \)
(b) \( \frac{2 \alpha \beta}{(\alpha+\beta)} t^{2} \)
(c) \( \frac{\alpha \beta}{4(\alpha+\beta)} t^{2} \)
(d) \( \frac{\alpha \beta}{2(\alpha+\beta)} t^{2} \)
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live




Other Videos By PW Solutions


2023-07-24If \( E_{1} \) and \( E_{2} \) are two events such that \( P\left(E_{1}\right)=1 / 4 \), \( P\le...
2023-07-24Two systems of rectangular axes have same origin. If a plane cuts them at distances \( a, b, c \...
2023-07-24Let \( \hat{u}=u_{1} \hat{i}+u_{2} \hat{j}+u_{3} \hat{k} \) be a unit vector in \( R^{3} \) and ...
2023-07-24If the volume of parallelopiped formed by the vectors \( \hat{\mathrm{i}}+\lambda \hat{\mathrm{j...
2023-07-24If \( \sqrt{x^{2}+y^{2}}=e^{\prime} \) where \( t=\sin ^{-1}\left(\frac{y}{\sqrt{x^{2}+y^{2}}}\r...
2023-07-24Consider the differential equation, \( y^{2} d x+\left(x-\frac{1}{y}\right) d y=0 \). P WV If va...
2023-07-24If the area of the bounded region \( R=\left\{(x, y): \max \left\{0, \log _{e} x\right\} \leq y ...
2023-07-24If \( \alpha, \beta \& \gamma \) are the roots of the equation \( x^{3}+p x+q= \) 0. then the va...
2023-07-24Four years ago, a mother was four times as old as her daughter. Six years later, the mother will...
2023-07-24An old article is available for Rs. 12000 at cash payment or is available for Rs. 7000 cash paym...
2023-07-24A car accelerates from rest at a constant rate \( \alpha \) for some time after which it deceler...
2023-07-24Prove that \( { }^{2 n} C_{n}=\frac{2^{n}\{1 \cdot 3 \cdot 5 \ldots(2 n-1)\}}{n !} \).
2023-07-24strongA force of /strongstrong750 /strongstrongN is applied to a block of mass /strongstrong102 ...
2023-07-24The kinetic energy of an electron in the second Bohr orbit of a hydrogen atom is [ \( a_{0} \) i...
2023-07-24strongA particle experience a constant acceleration for 20 sec after starting from rest. If it t...
2023-07-24strongA charge particle is moving in a uniform magnetic field/strongstrong /strong span class=ma...
2023-07-24strongIf R and L represent respectively resistance and self inductance, which of the following c...
2023-07-24span style=font-weight: 400;A man walks for some time t with velocity (v) due east. Then he walk...
2023-07-24strongA body of 10 kg mass falls form a height of 25m and gets rebound to 0.50m. If the loss in ...
2023-07-24strongIn the figure given below, if all surface are assumed to be smooth and the force F = 100 N...
2023-07-24The velocity \( v \) of a particle at time \( t \) is given by \( v=a t+\frac{b}{t+c} \), where ...