An automobile of mass M accelerates starting from rest with a constant power P generated by the engine Assume - Physics - Nuclei

Question

An automobile of mass M accelerates starting from rest with a
constant power P generated by the engine Assume that 80% of power
generated by the engine accelerates the automobile The distance
covered by automobile in time t is given by?(In terms of P, t, M)

Pintu B. · Accepted Answer

Dear Student ,
<img alt="" src=
"https://s3mn%20mnimgs%20com/img/shared/content_ck_images/ck_5a70b68e5da3a%20png"
style="width: 538px; height: 479px;">
Now the distance covered is ,s=v2-u22awhere , v=2Ptm and u=0Now as 80% of the power generated by the engine is used to accelerate the automobile
So we can take that , P'= 80% of the P=4P5So we can write that the disance covered in time 't' is ,s=2P'tm2a=4Pt5ma

Regards

An automobile of mass M accelerates starting from rest with a constant power P generated by the engine. Assume that 80% of power generated by the engine accelerates the automobile. The distance covered by automobile in time t is given by?(In terms of P, t, M)