Recent content by Shah 72

Thank you so so much!

A man and a boy hold opposite ends of 8m long pole which is horizontal. A mass of 200 kg is tied to the pole. If the man is to support four times as much weight as the boy where along the pole must the weight be tied? Can someone please help

Thank you so so much!

Iam getting confused with 30 N. So f(x) = 40cos alpha - 30 cos alpha F(y) = 40 sin alpha - 30 sin alpha

It's question 3. Iam getting a bit confused with the calculations. Pls help

V=0.0001t^3-0.015t^2+0.5t

Yeah I agree you are right. The velocity between 50 to 100 is negative so it comes back. I wasn't understanding the last question which asked for the greatest distance in the given time interval between 0 and 100. Since there are more time intervals in between which is 21.1 s where the velocity...

No the question says that it moves in a straight line. It starts at point O and returns to point O 100s later

Thanks very much!

So the greatest distance is when t=50s which is 156.25m.

A particle moves on a straight line. It starts at a point O on the line and returns to O 100 s later. The velocity of P is v m/s at time t s after leaving O where v= 0.000t^3- 0.015t^2 +0.5t. 1) Find the values of v at the times for which the acceleration of P is zero I got when t= 21.1s, V=...

I was able to solve it. I have done a silly mistake of writing e^-1. It's actually e^-t

The number of organisms in a population at time t is denoted by x. Treating x as a continuous variable, the differential equation satisfied by x and t is dx/dt= xe^-1/(k+e^-1), where k is a positive constant.. Given that x =10 when t=0 solve the differential equation, obtaining a relation...

Thanks!

Particle X of mass 2 kg , and particle Y of mass m kg are attached to the ends of a light inextensible string of length 4.8m. The string passes over a fixed smooth pulley and hangs vertically either side of the pulley. Particle X is held at ground level, 3m below the pulley. Particle X is...